Commit | Line | Data |
---|---|---|
fa90c54f AV |
1 | /* |
2 | * QLogic Fibre Channel HBA Driver | |
1e63395c | 3 | * Copyright (c) 2003-2013 QLogic Corporation |
1da177e4 | 4 | * |
fa90c54f AV |
5 | * See LICENSE.qla2xxx for copyright and licensing details. |
6 | */ | |
1da177e4 | 7 | #include "qla_def.h" |
2d70c103 | 8 | #include "qla_target.h" |
1da177e4 LT |
9 | |
10 | #include <linux/blkdev.h> | |
11 | #include <linux/delay.h> | |
12 | ||
13 | #include <scsi/scsi_tcq.h> | |
14 | ||
59e0b8b0 | 15 | static void qla25xx_set_que(srb_t *, struct rsp_que **); |
1da177e4 LT |
16 | /** |
17 | * qla2x00_get_cmd_direction() - Determine control_flag data direction. | |
18 | * @cmd: SCSI command | |
19 | * | |
20 | * Returns the proper CF_* direction based on CDB. | |
21 | */ | |
22 | static inline uint16_t | |
49fd462a | 23 | qla2x00_get_cmd_direction(srb_t *sp) |
1da177e4 LT |
24 | { |
25 | uint16_t cflags; | |
9ba56b95 | 26 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
2be21fa2 | 27 | struct scsi_qla_host *vha = sp->fcport->vha; |
1da177e4 LT |
28 | |
29 | cflags = 0; | |
30 | ||
31 | /* Set transfer direction */ | |
9ba56b95 | 32 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { |
1da177e4 | 33 | cflags = CF_WRITE; |
2be21fa2 | 34 | vha->qla_stats.output_bytes += scsi_bufflen(cmd); |
9ba56b95 | 35 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { |
1da177e4 | 36 | cflags = CF_READ; |
2be21fa2 | 37 | vha->qla_stats.input_bytes += scsi_bufflen(cmd); |
49fd462a | 38 | } |
1da177e4 LT |
39 | return (cflags); |
40 | } | |
41 | ||
42 | /** | |
43 | * qla2x00_calc_iocbs_32() - Determine number of Command Type 2 and | |
44 | * Continuation Type 0 IOCBs to allocate. | |
45 | * | |
46 | * @dsds: number of data segment decriptors needed | |
47 | * | |
48 | * Returns the number of IOCB entries needed to store @dsds. | |
49 | */ | |
50 | uint16_t | |
51 | qla2x00_calc_iocbs_32(uint16_t dsds) | |
52 | { | |
53 | uint16_t iocbs; | |
54 | ||
55 | iocbs = 1; | |
56 | if (dsds > 3) { | |
57 | iocbs += (dsds - 3) / 7; | |
58 | if ((dsds - 3) % 7) | |
59 | iocbs++; | |
60 | } | |
61 | return (iocbs); | |
62 | } | |
63 | ||
64 | /** | |
65 | * qla2x00_calc_iocbs_64() - Determine number of Command Type 3 and | |
66 | * Continuation Type 1 IOCBs to allocate. | |
67 | * | |
68 | * @dsds: number of data segment decriptors needed | |
69 | * | |
70 | * Returns the number of IOCB entries needed to store @dsds. | |
71 | */ | |
72 | uint16_t | |
73 | qla2x00_calc_iocbs_64(uint16_t dsds) | |
74 | { | |
75 | uint16_t iocbs; | |
76 | ||
77 | iocbs = 1; | |
78 | if (dsds > 2) { | |
79 | iocbs += (dsds - 2) / 5; | |
80 | if ((dsds - 2) % 5) | |
81 | iocbs++; | |
82 | } | |
83 | return (iocbs); | |
84 | } | |
85 | ||
86 | /** | |
87 | * qla2x00_prep_cont_type0_iocb() - Initialize a Continuation Type 0 IOCB. | |
88 | * @ha: HA context | |
89 | * | |
90 | * Returns a pointer to the Continuation Type 0 IOCB packet. | |
91 | */ | |
92 | static inline cont_entry_t * | |
67c2e93a | 93 | qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha) |
1da177e4 LT |
94 | { |
95 | cont_entry_t *cont_pkt; | |
67c2e93a | 96 | struct req_que *req = vha->req; |
1da177e4 | 97 | /* Adjust ring index. */ |
e315cd28 AC |
98 | req->ring_index++; |
99 | if (req->ring_index == req->length) { | |
100 | req->ring_index = 0; | |
101 | req->ring_ptr = req->ring; | |
1da177e4 | 102 | } else { |
e315cd28 | 103 | req->ring_ptr++; |
1da177e4 LT |
104 | } |
105 | ||
e315cd28 | 106 | cont_pkt = (cont_entry_t *)req->ring_ptr; |
1da177e4 LT |
107 | |
108 | /* Load packet defaults. */ | |
109 | *((uint32_t *)(&cont_pkt->entry_type)) = | |
110 | __constant_cpu_to_le32(CONTINUE_TYPE); | |
111 | ||
112 | return (cont_pkt); | |
113 | } | |
114 | ||
115 | /** | |
116 | * qla2x00_prep_cont_type1_iocb() - Initialize a Continuation Type 1 IOCB. | |
117 | * @ha: HA context | |
118 | * | |
119 | * Returns a pointer to the continuation type 1 IOCB packet. | |
120 | */ | |
121 | static inline cont_a64_entry_t * | |
0d2aa38e | 122 | qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha, struct req_que *req) |
1da177e4 LT |
123 | { |
124 | cont_a64_entry_t *cont_pkt; | |
125 | ||
126 | /* Adjust ring index. */ | |
e315cd28 AC |
127 | req->ring_index++; |
128 | if (req->ring_index == req->length) { | |
129 | req->ring_index = 0; | |
130 | req->ring_ptr = req->ring; | |
1da177e4 | 131 | } else { |
e315cd28 | 132 | req->ring_ptr++; |
1da177e4 LT |
133 | } |
134 | ||
e315cd28 | 135 | cont_pkt = (cont_a64_entry_t *)req->ring_ptr; |
1da177e4 LT |
136 | |
137 | /* Load packet defaults. */ | |
8ae6d9c7 GM |
138 | *((uint32_t *)(&cont_pkt->entry_type)) = IS_QLAFX00(vha->hw) ? |
139 | __constant_cpu_to_le32(CONTINUE_A64_TYPE_FX00) : | |
1da177e4 LT |
140 | __constant_cpu_to_le32(CONTINUE_A64_TYPE); |
141 | ||
142 | return (cont_pkt); | |
143 | } | |
144 | ||
bad75002 AE |
145 | static inline int |
146 | qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts) | |
147 | { | |
9ba56b95 GM |
148 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
149 | uint8_t guard = scsi_host_get_guard(cmd->device->host); | |
bad75002 | 150 | |
bad75002 AE |
151 | /* We always use DIFF Bundling for best performance */ |
152 | *fw_prot_opts = 0; | |
153 | ||
154 | /* Translate SCSI opcode to a protection opcode */ | |
9ba56b95 | 155 | switch (scsi_get_prot_op(cmd)) { |
bad75002 AE |
156 | case SCSI_PROT_READ_STRIP: |
157 | *fw_prot_opts |= PO_MODE_DIF_REMOVE; | |
158 | break; | |
159 | case SCSI_PROT_WRITE_INSERT: | |
160 | *fw_prot_opts |= PO_MODE_DIF_INSERT; | |
161 | break; | |
162 | case SCSI_PROT_READ_INSERT: | |
163 | *fw_prot_opts |= PO_MODE_DIF_INSERT; | |
164 | break; | |
165 | case SCSI_PROT_WRITE_STRIP: | |
166 | *fw_prot_opts |= PO_MODE_DIF_REMOVE; | |
167 | break; | |
168 | case SCSI_PROT_READ_PASS: | |
bad75002 | 169 | case SCSI_PROT_WRITE_PASS: |
9e522cd8 AE |
170 | if (guard & SHOST_DIX_GUARD_IP) |
171 | *fw_prot_opts |= PO_MODE_DIF_TCP_CKSUM; | |
172 | else | |
173 | *fw_prot_opts |= PO_MODE_DIF_PASS; | |
bad75002 AE |
174 | break; |
175 | default: /* Normal Request */ | |
176 | *fw_prot_opts |= PO_MODE_DIF_PASS; | |
177 | break; | |
178 | } | |
179 | ||
9ba56b95 | 180 | return scsi_prot_sg_count(cmd); |
bad75002 AE |
181 | } |
182 | ||
183 | /* | |
1da177e4 LT |
184 | * qla2x00_build_scsi_iocbs_32() - Build IOCB command utilizing 32bit |
185 | * capable IOCB types. | |
186 | * | |
187 | * @sp: SRB command to process | |
188 | * @cmd_pkt: Command type 2 IOCB | |
189 | * @tot_dsds: Total number of segments to transfer | |
190 | */ | |
191 | void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt, | |
192 | uint16_t tot_dsds) | |
193 | { | |
194 | uint16_t avail_dsds; | |
195 | uint32_t *cur_dsd; | |
e315cd28 | 196 | scsi_qla_host_t *vha; |
1da177e4 | 197 | struct scsi_cmnd *cmd; |
385d70b4 FT |
198 | struct scatterlist *sg; |
199 | int i; | |
1da177e4 | 200 | |
9ba56b95 | 201 | cmd = GET_CMD_SP(sp); |
1da177e4 LT |
202 | |
203 | /* Update entry type to indicate Command Type 2 IOCB */ | |
204 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
205 | __constant_cpu_to_le32(COMMAND_TYPE); | |
206 | ||
207 | /* No data transfer */ | |
385d70b4 | 208 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
1da177e4 LT |
209 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
210 | return; | |
211 | } | |
212 | ||
444786d7 | 213 | vha = sp->fcport->vha; |
49fd462a | 214 | cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); |
1da177e4 LT |
215 | |
216 | /* Three DSDs are available in the Command Type 2 IOCB */ | |
217 | avail_dsds = 3; | |
218 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
219 | ||
220 | /* Load data segments */ | |
385d70b4 FT |
221 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { |
222 | cont_entry_t *cont_pkt; | |
223 | ||
224 | /* Allocate additional continuation packets? */ | |
225 | if (avail_dsds == 0) { | |
226 | /* | |
227 | * Seven DSDs are available in the Continuation | |
228 | * Type 0 IOCB. | |
229 | */ | |
67c2e93a | 230 | cont_pkt = qla2x00_prep_cont_type0_iocb(vha); |
385d70b4 FT |
231 | cur_dsd = (uint32_t *)&cont_pkt->dseg_0_address; |
232 | avail_dsds = 7; | |
1da177e4 | 233 | } |
385d70b4 FT |
234 | |
235 | *cur_dsd++ = cpu_to_le32(sg_dma_address(sg)); | |
236 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
237 | avail_dsds--; | |
1da177e4 LT |
238 | } |
239 | } | |
240 | ||
241 | /** | |
242 | * qla2x00_build_scsi_iocbs_64() - Build IOCB command utilizing 64bit | |
243 | * capable IOCB types. | |
244 | * | |
245 | * @sp: SRB command to process | |
246 | * @cmd_pkt: Command type 3 IOCB | |
247 | * @tot_dsds: Total number of segments to transfer | |
248 | */ | |
249 | void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt, | |
250 | uint16_t tot_dsds) | |
251 | { | |
252 | uint16_t avail_dsds; | |
253 | uint32_t *cur_dsd; | |
e315cd28 | 254 | scsi_qla_host_t *vha; |
1da177e4 | 255 | struct scsi_cmnd *cmd; |
385d70b4 FT |
256 | struct scatterlist *sg; |
257 | int i; | |
1da177e4 | 258 | |
9ba56b95 | 259 | cmd = GET_CMD_SP(sp); |
1da177e4 LT |
260 | |
261 | /* Update entry type to indicate Command Type 3 IOCB */ | |
262 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
263 | __constant_cpu_to_le32(COMMAND_A64_TYPE); | |
264 | ||
265 | /* No data transfer */ | |
385d70b4 | 266 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
1da177e4 LT |
267 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
268 | return; | |
269 | } | |
270 | ||
444786d7 | 271 | vha = sp->fcport->vha; |
49fd462a | 272 | cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); |
1da177e4 LT |
273 | |
274 | /* Two DSDs are available in the Command Type 3 IOCB */ | |
275 | avail_dsds = 2; | |
276 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
277 | ||
278 | /* Load data segments */ | |
385d70b4 FT |
279 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { |
280 | dma_addr_t sle_dma; | |
281 | cont_a64_entry_t *cont_pkt; | |
282 | ||
283 | /* Allocate additional continuation packets? */ | |
284 | if (avail_dsds == 0) { | |
285 | /* | |
286 | * Five DSDs are available in the Continuation | |
287 | * Type 1 IOCB. | |
288 | */ | |
0d2aa38e | 289 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); |
385d70b4 FT |
290 | cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; |
291 | avail_dsds = 5; | |
1da177e4 | 292 | } |
385d70b4 FT |
293 | |
294 | sle_dma = sg_dma_address(sg); | |
295 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
296 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
297 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
298 | avail_dsds--; | |
1da177e4 LT |
299 | } |
300 | } | |
301 | ||
302 | /** | |
303 | * qla2x00_start_scsi() - Send a SCSI command to the ISP | |
304 | * @sp: command to send to the ISP | |
305 | * | |
cc3ef7bc | 306 | * Returns non-zero if a failure occurred, else zero. |
1da177e4 LT |
307 | */ |
308 | int | |
309 | qla2x00_start_scsi(srb_t *sp) | |
310 | { | |
385d70b4 | 311 | int ret, nseg; |
1da177e4 | 312 | unsigned long flags; |
e315cd28 | 313 | scsi_qla_host_t *vha; |
1da177e4 LT |
314 | struct scsi_cmnd *cmd; |
315 | uint32_t *clr_ptr; | |
316 | uint32_t index; | |
317 | uint32_t handle; | |
318 | cmd_entry_t *cmd_pkt; | |
1da177e4 LT |
319 | uint16_t cnt; |
320 | uint16_t req_cnt; | |
321 | uint16_t tot_dsds; | |
3d71644c | 322 | struct device_reg_2xxx __iomem *reg; |
e315cd28 AC |
323 | struct qla_hw_data *ha; |
324 | struct req_que *req; | |
73208dfd | 325 | struct rsp_que *rsp; |
ff2fc42e | 326 | char tag[2]; |
1da177e4 LT |
327 | |
328 | /* Setup device pointers. */ | |
329 | ret = 0; | |
444786d7 | 330 | vha = sp->fcport->vha; |
e315cd28 | 331 | ha = vha->hw; |
3d71644c | 332 | reg = &ha->iobase->isp; |
9ba56b95 | 333 | cmd = GET_CMD_SP(sp); |
73208dfd AC |
334 | req = ha->req_q_map[0]; |
335 | rsp = ha->rsp_q_map[0]; | |
83021920 AV |
336 | /* So we know we haven't pci_map'ed anything yet */ |
337 | tot_dsds = 0; | |
1da177e4 LT |
338 | |
339 | /* Send marker if required */ | |
e315cd28 | 340 | if (vha->marker_needed != 0) { |
7c3df132 SK |
341 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != |
342 | QLA_SUCCESS) { | |
1da177e4 | 343 | return (QLA_FUNCTION_FAILED); |
7c3df132 | 344 | } |
e315cd28 | 345 | vha->marker_needed = 0; |
1da177e4 LT |
346 | } |
347 | ||
348 | /* Acquire ring specific lock */ | |
c9c5ced9 | 349 | spin_lock_irqsave(&ha->hardware_lock, flags); |
1da177e4 LT |
350 | |
351 | /* Check for room in outstanding command list. */ | |
e315cd28 | 352 | handle = req->current_outstanding_cmd; |
8d93f550 | 353 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
1da177e4 | 354 | handle++; |
8d93f550 | 355 | if (handle == req->num_outstanding_cmds) |
1da177e4 | 356 | handle = 1; |
e315cd28 | 357 | if (!req->outstanding_cmds[handle]) |
1da177e4 LT |
358 | break; |
359 | } | |
8d93f550 | 360 | if (index == req->num_outstanding_cmds) |
1da177e4 LT |
361 | goto queuing_error; |
362 | ||
83021920 | 363 | /* Map the sg table so we have an accurate count of sg entries needed */ |
2c3dfe3f SJ |
364 | if (scsi_sg_count(cmd)) { |
365 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
366 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
367 | if (unlikely(!nseg)) | |
368 | goto queuing_error; | |
369 | } else | |
370 | nseg = 0; | |
371 | ||
385d70b4 | 372 | tot_dsds = nseg; |
83021920 | 373 | |
1da177e4 | 374 | /* Calculate the number of request entries needed. */ |
fd34f556 | 375 | req_cnt = ha->isp_ops->calc_req_entries(tot_dsds); |
e315cd28 | 376 | if (req->cnt < (req_cnt + 2)) { |
1da177e4 | 377 | cnt = RD_REG_WORD_RELAXED(ISP_REQ_Q_OUT(ha, reg)); |
e315cd28 AC |
378 | if (req->ring_index < cnt) |
379 | req->cnt = cnt - req->ring_index; | |
1da177e4 | 380 | else |
e315cd28 AC |
381 | req->cnt = req->length - |
382 | (req->ring_index - cnt); | |
a6eb3c9f CL |
383 | /* If still no head room then bail out */ |
384 | if (req->cnt < (req_cnt + 2)) | |
385 | goto queuing_error; | |
1da177e4 | 386 | } |
1da177e4 | 387 | |
1da177e4 | 388 | /* Build command packet */ |
e315cd28 AC |
389 | req->current_outstanding_cmd = handle; |
390 | req->outstanding_cmds[handle] = sp; | |
cf53b069 | 391 | sp->handle = handle; |
9ba56b95 | 392 | cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
e315cd28 | 393 | req->cnt -= req_cnt; |
1da177e4 | 394 | |
e315cd28 | 395 | cmd_pkt = (cmd_entry_t *)req->ring_ptr; |
1da177e4 LT |
396 | cmd_pkt->handle = handle; |
397 | /* Zero out remaining portion of packet. */ | |
398 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
399 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
400 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
401 | ||
bdf79621 AV |
402 | /* Set target ID and LUN number*/ |
403 | SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id); | |
9ba56b95 | 404 | cmd_pkt->lun = cpu_to_le16(cmd->device->lun); |
1da177e4 LT |
405 | |
406 | /* Update tagged queuing modifier */ | |
ff2fc42e AV |
407 | if (scsi_populate_tag_msg(cmd, tag)) { |
408 | switch (tag[0]) { | |
409 | case HEAD_OF_QUEUE_TAG: | |
410 | cmd_pkt->control_flags = | |
411 | __constant_cpu_to_le16(CF_HEAD_TAG); | |
412 | break; | |
413 | case ORDERED_QUEUE_TAG: | |
414 | cmd_pkt->control_flags = | |
415 | __constant_cpu_to_le16(CF_ORDERED_TAG); | |
416 | break; | |
417 | default: | |
418 | cmd_pkt->control_flags = | |
419 | __constant_cpu_to_le16(CF_SIMPLE_TAG); | |
420 | break; | |
421 | } | |
25ef8126 SK |
422 | } else { |
423 | cmd_pkt->control_flags = __constant_cpu_to_le16(CF_SIMPLE_TAG); | |
ff2fc42e | 424 | } |
1da177e4 | 425 | |
1da177e4 LT |
426 | /* Load SCSI command packet. */ |
427 | memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len); | |
385d70b4 | 428 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); |
1da177e4 LT |
429 | |
430 | /* Build IOCB segments */ | |
fd34f556 | 431 | ha->isp_ops->build_iocbs(sp, cmd_pkt, tot_dsds); |
1da177e4 LT |
432 | |
433 | /* Set total data segment count. */ | |
434 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
435 | wmb(); | |
436 | ||
437 | /* Adjust ring index. */ | |
e315cd28 AC |
438 | req->ring_index++; |
439 | if (req->ring_index == req->length) { | |
440 | req->ring_index = 0; | |
441 | req->ring_ptr = req->ring; | |
1da177e4 | 442 | } else |
e315cd28 | 443 | req->ring_ptr++; |
1da177e4 | 444 | |
1da177e4 | 445 | sp->flags |= SRB_DMA_VALID; |
1da177e4 LT |
446 | |
447 | /* Set chip new ring index. */ | |
e315cd28 | 448 | WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), req->ring_index); |
1da177e4 LT |
449 | RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */ |
450 | ||
4fdfefe5 | 451 | /* Manage unprocessed RIO/ZIO commands in response queue. */ |
e315cd28 | 452 | if (vha->flags.process_response_queue && |
73208dfd AC |
453 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) |
454 | qla2x00_process_response_queue(rsp); | |
4fdfefe5 | 455 | |
c9c5ced9 | 456 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
1da177e4 LT |
457 | return (QLA_SUCCESS); |
458 | ||
459 | queuing_error: | |
385d70b4 FT |
460 | if (tot_dsds) |
461 | scsi_dma_unmap(cmd); | |
462 | ||
c9c5ced9 | 463 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
1da177e4 LT |
464 | |
465 | return (QLA_FUNCTION_FAILED); | |
466 | } | |
467 | ||
5162cf0c GM |
468 | /** |
469 | * qla2x00_start_iocbs() - Execute the IOCB command | |
470 | */ | |
2d70c103 | 471 | void |
5162cf0c GM |
472 | qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req) |
473 | { | |
474 | struct qla_hw_data *ha = vha->hw; | |
475 | device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); | |
5162cf0c GM |
476 | |
477 | if (IS_QLA82XX(ha)) { | |
478 | qla82xx_start_iocbs(vha); | |
479 | } else { | |
480 | /* Adjust ring index. */ | |
481 | req->ring_index++; | |
482 | if (req->ring_index == req->length) { | |
483 | req->ring_index = 0; | |
484 | req->ring_ptr = req->ring; | |
485 | } else | |
486 | req->ring_ptr++; | |
487 | ||
488 | /* Set chip new ring index. */ | |
6246b8a1 GM |
489 | if (ha->mqenable || IS_QLA83XX(ha)) { |
490 | WRT_REG_DWORD(req->req_q_in, req->ring_index); | |
98878a16 | 491 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); |
8ae6d9c7 GM |
492 | } else if (IS_QLAFX00(ha)) { |
493 | WRT_REG_DWORD(®->ispfx00.req_q_in, req->ring_index); | |
494 | RD_REG_DWORD_RELAXED(®->ispfx00.req_q_in); | |
495 | QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code); | |
5162cf0c GM |
496 | } else if (IS_FWI2_CAPABLE(ha)) { |
497 | WRT_REG_DWORD(®->isp24.req_q_in, req->ring_index); | |
498 | RD_REG_DWORD_RELAXED(®->isp24.req_q_in); | |
499 | } else { | |
500 | WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp), | |
501 | req->ring_index); | |
502 | RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp)); | |
503 | } | |
504 | } | |
505 | } | |
506 | ||
1da177e4 LT |
507 | /** |
508 | * qla2x00_marker() - Send a marker IOCB to the firmware. | |
509 | * @ha: HA context | |
510 | * @loop_id: loop ID | |
511 | * @lun: LUN | |
512 | * @type: marker modifier | |
513 | * | |
514 | * Can be called from both normal and interrupt context. | |
515 | * | |
cc3ef7bc | 516 | * Returns non-zero if a failure occurred, else zero. |
1da177e4 | 517 | */ |
3dbe756a | 518 | static int |
73208dfd AC |
519 | __qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, |
520 | struct rsp_que *rsp, uint16_t loop_id, | |
521 | uint16_t lun, uint8_t type) | |
1da177e4 | 522 | { |
2b6c0cee | 523 | mrk_entry_t *mrk; |
8ae6d9c7 GM |
524 | struct mrk_entry_24xx *mrk24 = NULL; |
525 | struct mrk_entry_fx00 *mrkfx = NULL; | |
526 | ||
e315cd28 AC |
527 | struct qla_hw_data *ha = vha->hw; |
528 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); | |
1da177e4 | 529 | |
99b8212c | 530 | req = ha->req_q_map[0]; |
fa492630 | 531 | mrk = (mrk_entry_t *)qla2x00_alloc_iocbs(vha, NULL); |
2b6c0cee | 532 | if (mrk == NULL) { |
7c3df132 SK |
533 | ql_log(ql_log_warn, base_vha, 0x3026, |
534 | "Failed to allocate Marker IOCB.\n"); | |
1da177e4 LT |
535 | |
536 | return (QLA_FUNCTION_FAILED); | |
537 | } | |
538 | ||
2b6c0cee AV |
539 | mrk->entry_type = MARKER_TYPE; |
540 | mrk->modifier = type; | |
1da177e4 | 541 | if (type != MK_SYNC_ALL) { |
8ae6d9c7 GM |
542 | if (IS_QLAFX00(ha)) { |
543 | mrkfx = (struct mrk_entry_fx00 *) mrk; | |
544 | mrkfx->handle = MAKE_HANDLE(req->id, mrkfx->handle); | |
545 | mrkfx->handle_hi = 0; | |
546 | mrkfx->tgt_id = cpu_to_le16(loop_id); | |
547 | mrkfx->lun[1] = LSB(lun); | |
548 | mrkfx->lun[2] = MSB(lun); | |
549 | host_to_fcp_swap(mrkfx->lun, sizeof(mrkfx->lun)); | |
550 | } else if (IS_FWI2_CAPABLE(ha)) { | |
2b6c0cee AV |
551 | mrk24 = (struct mrk_entry_24xx *) mrk; |
552 | mrk24->nport_handle = cpu_to_le16(loop_id); | |
553 | mrk24->lun[1] = LSB(lun); | |
554 | mrk24->lun[2] = MSB(lun); | |
b797b6de | 555 | host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun)); |
e315cd28 | 556 | mrk24->vp_index = vha->vp_idx; |
2afa19a9 | 557 | mrk24->handle = MAKE_HANDLE(req->id, mrk24->handle); |
2b6c0cee AV |
558 | } else { |
559 | SET_TARGET_ID(ha, mrk->target, loop_id); | |
560 | mrk->lun = cpu_to_le16(lun); | |
561 | } | |
1da177e4 LT |
562 | } |
563 | wmb(); | |
564 | ||
5162cf0c | 565 | qla2x00_start_iocbs(vha, req); |
1da177e4 LT |
566 | |
567 | return (QLA_SUCCESS); | |
568 | } | |
569 | ||
fa2a1ce5 | 570 | int |
73208dfd AC |
571 | qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, |
572 | struct rsp_que *rsp, uint16_t loop_id, uint16_t lun, | |
573 | uint8_t type) | |
1da177e4 LT |
574 | { |
575 | int ret; | |
576 | unsigned long flags = 0; | |
577 | ||
73208dfd AC |
578 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); |
579 | ret = __qla2x00_marker(vha, req, rsp, loop_id, lun, type); | |
580 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
1da177e4 LT |
581 | |
582 | return (ret); | |
583 | } | |
584 | ||
2d70c103 NB |
585 | /* |
586 | * qla2x00_issue_marker | |
587 | * | |
588 | * Issue marker | |
589 | * Caller CAN have hardware lock held as specified by ha_locked parameter. | |
590 | * Might release it, then reaquire. | |
591 | */ | |
592 | int qla2x00_issue_marker(scsi_qla_host_t *vha, int ha_locked) | |
593 | { | |
594 | if (ha_locked) { | |
595 | if (__qla2x00_marker(vha, vha->req, vha->req->rsp, 0, 0, | |
596 | MK_SYNC_ALL) != QLA_SUCCESS) | |
597 | return QLA_FUNCTION_FAILED; | |
598 | } else { | |
599 | if (qla2x00_marker(vha, vha->req, vha->req->rsp, 0, 0, | |
600 | MK_SYNC_ALL) != QLA_SUCCESS) | |
601 | return QLA_FUNCTION_FAILED; | |
602 | } | |
603 | vha->marker_needed = 0; | |
604 | ||
605 | return QLA_SUCCESS; | |
606 | } | |
607 | ||
5162cf0c GM |
608 | static inline int |
609 | qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt, | |
610 | uint16_t tot_dsds) | |
611 | { | |
612 | uint32_t *cur_dsd = NULL; | |
613 | scsi_qla_host_t *vha; | |
614 | struct qla_hw_data *ha; | |
615 | struct scsi_cmnd *cmd; | |
616 | struct scatterlist *cur_seg; | |
617 | uint32_t *dsd_seg; | |
618 | void *next_dsd; | |
619 | uint8_t avail_dsds; | |
620 | uint8_t first_iocb = 1; | |
621 | uint32_t dsd_list_len; | |
622 | struct dsd_dma *dsd_ptr; | |
623 | struct ct6_dsd *ctx; | |
1da177e4 | 624 | |
9ba56b95 | 625 | cmd = GET_CMD_SP(sp); |
a9083016 | 626 | |
5162cf0c GM |
627 | /* Update entry type to indicate Command Type 3 IOCB */ |
628 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
629 | __constant_cpu_to_le32(COMMAND_TYPE_6); | |
630 | ||
631 | /* No data transfer */ | |
632 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { | |
633 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); | |
634 | return 0; | |
635 | } | |
636 | ||
637 | vha = sp->fcport->vha; | |
638 | ha = vha->hw; | |
639 | ||
640 | /* Set transfer direction */ | |
641 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { | |
642 | cmd_pkt->control_flags = | |
643 | __constant_cpu_to_le16(CF_WRITE_DATA); | |
2be21fa2 | 644 | vha->qla_stats.output_bytes += scsi_bufflen(cmd); |
5162cf0c GM |
645 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { |
646 | cmd_pkt->control_flags = | |
647 | __constant_cpu_to_le16(CF_READ_DATA); | |
2be21fa2 | 648 | vha->qla_stats.input_bytes += scsi_bufflen(cmd); |
5162cf0c GM |
649 | } |
650 | ||
651 | cur_seg = scsi_sglist(cmd); | |
9ba56b95 | 652 | ctx = GET_CMD_CTX_SP(sp); |
5162cf0c GM |
653 | |
654 | while (tot_dsds) { | |
655 | avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ? | |
656 | QLA_DSDS_PER_IOCB : tot_dsds; | |
657 | tot_dsds -= avail_dsds; | |
658 | dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE; | |
659 | ||
660 | dsd_ptr = list_first_entry(&ha->gbl_dsd_list, | |
661 | struct dsd_dma, list); | |
662 | next_dsd = dsd_ptr->dsd_addr; | |
663 | list_del(&dsd_ptr->list); | |
664 | ha->gbl_dsd_avail--; | |
665 | list_add_tail(&dsd_ptr->list, &ctx->dsd_list); | |
666 | ctx->dsd_use_cnt++; | |
667 | ha->gbl_dsd_inuse++; | |
668 | ||
669 | if (first_iocb) { | |
670 | first_iocb = 0; | |
671 | dsd_seg = (uint32_t *)&cmd_pkt->fcp_data_dseg_address; | |
672 | *dsd_seg++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
673 | *dsd_seg++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
674 | cmd_pkt->fcp_data_dseg_len = cpu_to_le32(dsd_list_len); | |
73208dfd | 675 | } else { |
5162cf0c GM |
676 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); |
677 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
678 | *cur_dsd++ = cpu_to_le32(dsd_list_len); | |
679 | } | |
680 | cur_dsd = (uint32_t *)next_dsd; | |
681 | while (avail_dsds) { | |
682 | dma_addr_t sle_dma; | |
683 | ||
684 | sle_dma = sg_dma_address(cur_seg); | |
685 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
686 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
687 | *cur_dsd++ = cpu_to_le32(sg_dma_len(cur_seg)); | |
688 | cur_seg = sg_next(cur_seg); | |
689 | avail_dsds--; | |
73208dfd | 690 | } |
2b6c0cee AV |
691 | } |
692 | ||
5162cf0c GM |
693 | /* Null termination */ |
694 | *cur_dsd++ = 0; | |
695 | *cur_dsd++ = 0; | |
696 | *cur_dsd++ = 0; | |
697 | cmd_pkt->control_flags |= CF_DATA_SEG_DESCR_ENABLE; | |
698 | return 0; | |
2b6c0cee AV |
699 | } |
700 | ||
5162cf0c GM |
701 | /* |
702 | * qla24xx_calc_dsd_lists() - Determine number of DSD list required | |
703 | * for Command Type 6. | |
2b6c0cee AV |
704 | * |
705 | * @dsds: number of data segment decriptors needed | |
706 | * | |
5162cf0c | 707 | * Returns the number of dsd list needed to store @dsds. |
2b6c0cee | 708 | */ |
a9083016 | 709 | inline uint16_t |
5162cf0c | 710 | qla24xx_calc_dsd_lists(uint16_t dsds) |
2b6c0cee | 711 | { |
5162cf0c | 712 | uint16_t dsd_lists = 0; |
2b6c0cee | 713 | |
5162cf0c GM |
714 | dsd_lists = (dsds/QLA_DSDS_PER_IOCB); |
715 | if (dsds % QLA_DSDS_PER_IOCB) | |
716 | dsd_lists++; | |
717 | return dsd_lists; | |
2b6c0cee AV |
718 | } |
719 | ||
5162cf0c | 720 | |
2b6c0cee AV |
721 | /** |
722 | * qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7 | |
723 | * IOCB types. | |
724 | * | |
725 | * @sp: SRB command to process | |
726 | * @cmd_pkt: Command type 3 IOCB | |
727 | * @tot_dsds: Total number of segments to transfer | |
728 | */ | |
a9083016 | 729 | inline void |
2b6c0cee AV |
730 | qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, |
731 | uint16_t tot_dsds) | |
732 | { | |
733 | uint16_t avail_dsds; | |
734 | uint32_t *cur_dsd; | |
e315cd28 | 735 | scsi_qla_host_t *vha; |
2b6c0cee | 736 | struct scsi_cmnd *cmd; |
385d70b4 FT |
737 | struct scatterlist *sg; |
738 | int i; | |
73208dfd | 739 | struct req_que *req; |
2b6c0cee | 740 | |
9ba56b95 | 741 | cmd = GET_CMD_SP(sp); |
2b6c0cee AV |
742 | |
743 | /* Update entry type to indicate Command Type 3 IOCB */ | |
744 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
745 | __constant_cpu_to_le32(COMMAND_TYPE_7); | |
746 | ||
747 | /* No data transfer */ | |
385d70b4 | 748 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
2b6c0cee AV |
749 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
750 | return; | |
751 | } | |
752 | ||
444786d7 | 753 | vha = sp->fcport->vha; |
67c2e93a | 754 | req = vha->req; |
2b6c0cee AV |
755 | |
756 | /* Set transfer direction */ | |
49fd462a | 757 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { |
2b6c0cee AV |
758 | cmd_pkt->task_mgmt_flags = |
759 | __constant_cpu_to_le16(TMF_WRITE_DATA); | |
2be21fa2 | 760 | vha->qla_stats.output_bytes += scsi_bufflen(cmd); |
49fd462a | 761 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { |
2b6c0cee AV |
762 | cmd_pkt->task_mgmt_flags = |
763 | __constant_cpu_to_le16(TMF_READ_DATA); | |
2be21fa2 | 764 | vha->qla_stats.input_bytes += scsi_bufflen(cmd); |
49fd462a | 765 | } |
2b6c0cee AV |
766 | |
767 | /* One DSD is available in the Command Type 3 IOCB */ | |
768 | avail_dsds = 1; | |
769 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
770 | ||
771 | /* Load data segments */ | |
385d70b4 FT |
772 | |
773 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { | |
774 | dma_addr_t sle_dma; | |
775 | cont_a64_entry_t *cont_pkt; | |
776 | ||
777 | /* Allocate additional continuation packets? */ | |
778 | if (avail_dsds == 0) { | |
779 | /* | |
780 | * Five DSDs are available in the Continuation | |
781 | * Type 1 IOCB. | |
782 | */ | |
0d2aa38e | 783 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); |
385d70b4 FT |
784 | cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; |
785 | avail_dsds = 5; | |
2b6c0cee | 786 | } |
385d70b4 FT |
787 | |
788 | sle_dma = sg_dma_address(sg); | |
789 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
790 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
791 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
792 | avail_dsds--; | |
2b6c0cee AV |
793 | } |
794 | } | |
795 | ||
bad75002 AE |
796 | struct fw_dif_context { |
797 | uint32_t ref_tag; | |
798 | uint16_t app_tag; | |
799 | uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/ | |
800 | uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/ | |
801 | }; | |
802 | ||
803 | /* | |
804 | * qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command | |
805 | * | |
806 | */ | |
807 | static inline void | |
e02587d7 | 808 | qla24xx_set_t10dif_tags(srb_t *sp, struct fw_dif_context *pkt, |
bad75002 AE |
809 | unsigned int protcnt) |
810 | { | |
9ba56b95 | 811 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
bad75002 AE |
812 | |
813 | switch (scsi_get_prot_type(cmd)) { | |
bad75002 | 814 | case SCSI_PROT_DIF_TYPE0: |
8cb2049c AE |
815 | /* |
816 | * No check for ql2xenablehba_err_chk, as it would be an | |
817 | * I/O error if hba tag generation is not done. | |
818 | */ | |
819 | pkt->ref_tag = cpu_to_le32((uint32_t) | |
820 | (0xffffffff & scsi_get_lba(cmd))); | |
e02587d7 AE |
821 | |
822 | if (!qla2x00_hba_err_chk_enabled(sp)) | |
823 | break; | |
824 | ||
8cb2049c AE |
825 | pkt->ref_tag_mask[0] = 0xff; |
826 | pkt->ref_tag_mask[1] = 0xff; | |
827 | pkt->ref_tag_mask[2] = 0xff; | |
828 | pkt->ref_tag_mask[3] = 0xff; | |
bad75002 AE |
829 | break; |
830 | ||
831 | /* | |
832 | * For TYPE 2 protection: 16 bit GUARD + 32 bit REF tag has to | |
833 | * match LBA in CDB + N | |
834 | */ | |
835 | case SCSI_PROT_DIF_TYPE2: | |
e02587d7 AE |
836 | pkt->app_tag = __constant_cpu_to_le16(0); |
837 | pkt->app_tag_mask[0] = 0x0; | |
838 | pkt->app_tag_mask[1] = 0x0; | |
0c470874 AE |
839 | |
840 | pkt->ref_tag = cpu_to_le32((uint32_t) | |
841 | (0xffffffff & scsi_get_lba(cmd))); | |
842 | ||
e02587d7 AE |
843 | if (!qla2x00_hba_err_chk_enabled(sp)) |
844 | break; | |
845 | ||
0c470874 AE |
846 | /* enable ALL bytes of the ref tag */ |
847 | pkt->ref_tag_mask[0] = 0xff; | |
848 | pkt->ref_tag_mask[1] = 0xff; | |
849 | pkt->ref_tag_mask[2] = 0xff; | |
850 | pkt->ref_tag_mask[3] = 0xff; | |
bad75002 AE |
851 | break; |
852 | ||
853 | /* For Type 3 protection: 16 bit GUARD only */ | |
854 | case SCSI_PROT_DIF_TYPE3: | |
855 | pkt->ref_tag_mask[0] = pkt->ref_tag_mask[1] = | |
856 | pkt->ref_tag_mask[2] = pkt->ref_tag_mask[3] = | |
857 | 0x00; | |
858 | break; | |
859 | ||
860 | /* | |
861 | * For TYpe 1 protection: 16 bit GUARD tag, 32 bit REF tag, and | |
862 | * 16 bit app tag. | |
863 | */ | |
864 | case SCSI_PROT_DIF_TYPE1: | |
e02587d7 AE |
865 | pkt->ref_tag = cpu_to_le32((uint32_t) |
866 | (0xffffffff & scsi_get_lba(cmd))); | |
867 | pkt->app_tag = __constant_cpu_to_le16(0); | |
868 | pkt->app_tag_mask[0] = 0x0; | |
869 | pkt->app_tag_mask[1] = 0x0; | |
870 | ||
871 | if (!qla2x00_hba_err_chk_enabled(sp)) | |
bad75002 AE |
872 | break; |
873 | ||
bad75002 AE |
874 | /* enable ALL bytes of the ref tag */ |
875 | pkt->ref_tag_mask[0] = 0xff; | |
876 | pkt->ref_tag_mask[1] = 0xff; | |
877 | pkt->ref_tag_mask[2] = 0xff; | |
878 | pkt->ref_tag_mask[3] = 0xff; | |
879 | break; | |
880 | } | |
bad75002 AE |
881 | } |
882 | ||
8cb2049c AE |
883 | struct qla2_sgx { |
884 | dma_addr_t dma_addr; /* OUT */ | |
885 | uint32_t dma_len; /* OUT */ | |
886 | ||
887 | uint32_t tot_bytes; /* IN */ | |
888 | struct scatterlist *cur_sg; /* IN */ | |
889 | ||
890 | /* for book keeping, bzero on initial invocation */ | |
891 | uint32_t bytes_consumed; | |
892 | uint32_t num_bytes; | |
893 | uint32_t tot_partial; | |
894 | ||
895 | /* for debugging */ | |
896 | uint32_t num_sg; | |
897 | srb_t *sp; | |
898 | }; | |
899 | ||
900 | static int | |
901 | qla24xx_get_one_block_sg(uint32_t blk_sz, struct qla2_sgx *sgx, | |
902 | uint32_t *partial) | |
903 | { | |
904 | struct scatterlist *sg; | |
905 | uint32_t cumulative_partial, sg_len; | |
906 | dma_addr_t sg_dma_addr; | |
907 | ||
908 | if (sgx->num_bytes == sgx->tot_bytes) | |
909 | return 0; | |
910 | ||
911 | sg = sgx->cur_sg; | |
912 | cumulative_partial = sgx->tot_partial; | |
913 | ||
914 | sg_dma_addr = sg_dma_address(sg); | |
915 | sg_len = sg_dma_len(sg); | |
916 | ||
917 | sgx->dma_addr = sg_dma_addr + sgx->bytes_consumed; | |
918 | ||
919 | if ((cumulative_partial + (sg_len - sgx->bytes_consumed)) >= blk_sz) { | |
920 | sgx->dma_len = (blk_sz - cumulative_partial); | |
921 | sgx->tot_partial = 0; | |
922 | sgx->num_bytes += blk_sz; | |
923 | *partial = 0; | |
924 | } else { | |
925 | sgx->dma_len = sg_len - sgx->bytes_consumed; | |
926 | sgx->tot_partial += sgx->dma_len; | |
927 | *partial = 1; | |
928 | } | |
929 | ||
930 | sgx->bytes_consumed += sgx->dma_len; | |
931 | ||
932 | if (sg_len == sgx->bytes_consumed) { | |
933 | sg = sg_next(sg); | |
934 | sgx->num_sg++; | |
935 | sgx->cur_sg = sg; | |
936 | sgx->bytes_consumed = 0; | |
937 | } | |
938 | ||
939 | return 1; | |
940 | } | |
941 | ||
942 | static int | |
943 | qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp, | |
944 | uint32_t *dsd, uint16_t tot_dsds) | |
945 | { | |
946 | void *next_dsd; | |
947 | uint8_t avail_dsds = 0; | |
948 | uint32_t dsd_list_len; | |
949 | struct dsd_dma *dsd_ptr; | |
950 | struct scatterlist *sg_prot; | |
951 | uint32_t *cur_dsd = dsd; | |
952 | uint16_t used_dsds = tot_dsds; | |
953 | ||
954 | uint32_t prot_int; | |
955 | uint32_t partial; | |
956 | struct qla2_sgx sgx; | |
957 | dma_addr_t sle_dma; | |
958 | uint32_t sle_dma_len, tot_prot_dma_len = 0; | |
9ba56b95 | 959 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
8cb2049c AE |
960 | |
961 | prot_int = cmd->device->sector_size; | |
962 | ||
963 | memset(&sgx, 0, sizeof(struct qla2_sgx)); | |
9ba56b95 GM |
964 | sgx.tot_bytes = scsi_bufflen(cmd); |
965 | sgx.cur_sg = scsi_sglist(cmd); | |
8cb2049c AE |
966 | sgx.sp = sp; |
967 | ||
9ba56b95 | 968 | sg_prot = scsi_prot_sglist(cmd); |
8cb2049c AE |
969 | |
970 | while (qla24xx_get_one_block_sg(prot_int, &sgx, &partial)) { | |
971 | ||
972 | sle_dma = sgx.dma_addr; | |
973 | sle_dma_len = sgx.dma_len; | |
974 | alloc_and_fill: | |
975 | /* Allocate additional continuation packets? */ | |
976 | if (avail_dsds == 0) { | |
977 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
978 | QLA_DSDS_PER_IOCB : used_dsds; | |
979 | dsd_list_len = (avail_dsds + 1) * 12; | |
980 | used_dsds -= avail_dsds; | |
981 | ||
982 | /* allocate tracking DS */ | |
983 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
984 | if (!dsd_ptr) | |
985 | return 1; | |
986 | ||
987 | /* allocate new list */ | |
988 | dsd_ptr->dsd_addr = next_dsd = | |
989 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
990 | &dsd_ptr->dsd_list_dma); | |
991 | ||
992 | if (!next_dsd) { | |
993 | /* | |
994 | * Need to cleanup only this dsd_ptr, rest | |
995 | * will be done by sp_free_dma() | |
996 | */ | |
997 | kfree(dsd_ptr); | |
998 | return 1; | |
999 | } | |
1000 | ||
1001 | list_add_tail(&dsd_ptr->list, | |
9ba56b95 | 1002 | &((struct crc_context *)sp->u.scmd.ctx)->dsd_list); |
8cb2049c AE |
1003 | |
1004 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
1005 | ||
1006 | /* add new list to cmd iocb or last list */ | |
1007 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
1008 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
1009 | *cur_dsd++ = dsd_list_len; | |
1010 | cur_dsd = (uint32_t *)next_dsd; | |
1011 | } | |
1012 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
1013 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1014 | *cur_dsd++ = cpu_to_le32(sle_dma_len); | |
1015 | avail_dsds--; | |
1016 | ||
1017 | if (partial == 0) { | |
1018 | /* Got a full protection interval */ | |
1019 | sle_dma = sg_dma_address(sg_prot) + tot_prot_dma_len; | |
1020 | sle_dma_len = 8; | |
bad75002 | 1021 | |
8cb2049c AE |
1022 | tot_prot_dma_len += sle_dma_len; |
1023 | if (tot_prot_dma_len == sg_dma_len(sg_prot)) { | |
1024 | tot_prot_dma_len = 0; | |
1025 | sg_prot = sg_next(sg_prot); | |
1026 | } | |
1027 | ||
1028 | partial = 1; /* So as to not re-enter this block */ | |
1029 | goto alloc_and_fill; | |
1030 | } | |
1031 | } | |
1032 | /* Null termination */ | |
1033 | *cur_dsd++ = 0; | |
1034 | *cur_dsd++ = 0; | |
1035 | *cur_dsd++ = 0; | |
1036 | return 0; | |
1037 | } | |
5162cf0c | 1038 | |
bad75002 AE |
1039 | static int |
1040 | qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd, | |
1041 | uint16_t tot_dsds) | |
1042 | { | |
1043 | void *next_dsd; | |
1044 | uint8_t avail_dsds = 0; | |
1045 | uint32_t dsd_list_len; | |
1046 | struct dsd_dma *dsd_ptr; | |
1047 | struct scatterlist *sg; | |
1048 | uint32_t *cur_dsd = dsd; | |
1049 | int i; | |
1050 | uint16_t used_dsds = tot_dsds; | |
9ba56b95 | 1051 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
bad75002 | 1052 | |
9ba56b95 | 1053 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { |
bad75002 AE |
1054 | dma_addr_t sle_dma; |
1055 | ||
1056 | /* Allocate additional continuation packets? */ | |
1057 | if (avail_dsds == 0) { | |
1058 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
1059 | QLA_DSDS_PER_IOCB : used_dsds; | |
1060 | dsd_list_len = (avail_dsds + 1) * 12; | |
1061 | used_dsds -= avail_dsds; | |
1062 | ||
1063 | /* allocate tracking DS */ | |
1064 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
1065 | if (!dsd_ptr) | |
1066 | return 1; | |
1067 | ||
1068 | /* allocate new list */ | |
1069 | dsd_ptr->dsd_addr = next_dsd = | |
1070 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
1071 | &dsd_ptr->dsd_list_dma); | |
1072 | ||
1073 | if (!next_dsd) { | |
1074 | /* | |
1075 | * Need to cleanup only this dsd_ptr, rest | |
1076 | * will be done by sp_free_dma() | |
1077 | */ | |
1078 | kfree(dsd_ptr); | |
1079 | return 1; | |
1080 | } | |
1081 | ||
1082 | list_add_tail(&dsd_ptr->list, | |
9ba56b95 | 1083 | &((struct crc_context *)sp->u.scmd.ctx)->dsd_list); |
bad75002 AE |
1084 | |
1085 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
1086 | ||
1087 | /* add new list to cmd iocb or last list */ | |
1088 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
1089 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
1090 | *cur_dsd++ = dsd_list_len; | |
1091 | cur_dsd = (uint32_t *)next_dsd; | |
1092 | } | |
1093 | sle_dma = sg_dma_address(sg); | |
9e522cd8 | 1094 | |
bad75002 AE |
1095 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); |
1096 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1097 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
1098 | avail_dsds--; | |
1099 | ||
bad75002 AE |
1100 | } |
1101 | /* Null termination */ | |
1102 | *cur_dsd++ = 0; | |
1103 | *cur_dsd++ = 0; | |
1104 | *cur_dsd++ = 0; | |
1105 | return 0; | |
1106 | } | |
1107 | ||
1108 | static int | |
1109 | qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp, | |
1110 | uint32_t *dsd, | |
1111 | uint16_t tot_dsds) | |
1112 | { | |
1113 | void *next_dsd; | |
1114 | uint8_t avail_dsds = 0; | |
1115 | uint32_t dsd_list_len; | |
1116 | struct dsd_dma *dsd_ptr; | |
1117 | struct scatterlist *sg; | |
1118 | int i; | |
1119 | struct scsi_cmnd *cmd; | |
1120 | uint32_t *cur_dsd = dsd; | |
1121 | uint16_t used_dsds = tot_dsds; | |
bad75002 | 1122 | |
9ba56b95 | 1123 | cmd = GET_CMD_SP(sp); |
bad75002 AE |
1124 | scsi_for_each_prot_sg(cmd, sg, tot_dsds, i) { |
1125 | dma_addr_t sle_dma; | |
1126 | ||
1127 | /* Allocate additional continuation packets? */ | |
1128 | if (avail_dsds == 0) { | |
1129 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
1130 | QLA_DSDS_PER_IOCB : used_dsds; | |
1131 | dsd_list_len = (avail_dsds + 1) * 12; | |
1132 | used_dsds -= avail_dsds; | |
1133 | ||
1134 | /* allocate tracking DS */ | |
1135 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
1136 | if (!dsd_ptr) | |
1137 | return 1; | |
1138 | ||
1139 | /* allocate new list */ | |
1140 | dsd_ptr->dsd_addr = next_dsd = | |
1141 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
1142 | &dsd_ptr->dsd_list_dma); | |
1143 | ||
1144 | if (!next_dsd) { | |
1145 | /* | |
1146 | * Need to cleanup only this dsd_ptr, rest | |
1147 | * will be done by sp_free_dma() | |
1148 | */ | |
1149 | kfree(dsd_ptr); | |
1150 | return 1; | |
1151 | } | |
1152 | ||
1153 | list_add_tail(&dsd_ptr->list, | |
9ba56b95 | 1154 | &((struct crc_context *)sp->u.scmd.ctx)->dsd_list); |
bad75002 AE |
1155 | |
1156 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
1157 | ||
1158 | /* add new list to cmd iocb or last list */ | |
1159 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
1160 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
1161 | *cur_dsd++ = dsd_list_len; | |
1162 | cur_dsd = (uint32_t *)next_dsd; | |
1163 | } | |
1164 | sle_dma = sg_dma_address(sg); | |
9e522cd8 | 1165 | |
bad75002 AE |
1166 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); |
1167 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1168 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
1169 | ||
bad75002 AE |
1170 | avail_dsds--; |
1171 | } | |
1172 | /* Null termination */ | |
1173 | *cur_dsd++ = 0; | |
1174 | *cur_dsd++ = 0; | |
1175 | *cur_dsd++ = 0; | |
1176 | return 0; | |
1177 | } | |
1178 | ||
1179 | /** | |
1180 | * qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command | |
1181 | * Type 6 IOCB types. | |
1182 | * | |
1183 | * @sp: SRB command to process | |
1184 | * @cmd_pkt: Command type 3 IOCB | |
1185 | * @tot_dsds: Total number of segments to transfer | |
1186 | */ | |
1187 | static inline int | |
1188 | qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, | |
1189 | uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts) | |
1190 | { | |
1191 | uint32_t *cur_dsd, *fcp_dl; | |
1192 | scsi_qla_host_t *vha; | |
1193 | struct scsi_cmnd *cmd; | |
1194 | struct scatterlist *cur_seg; | |
1195 | int sgc; | |
8cb2049c | 1196 | uint32_t total_bytes = 0; |
bad75002 AE |
1197 | uint32_t data_bytes; |
1198 | uint32_t dif_bytes; | |
1199 | uint8_t bundling = 1; | |
1200 | uint16_t blk_size; | |
1201 | uint8_t *clr_ptr; | |
1202 | struct crc_context *crc_ctx_pkt = NULL; | |
1203 | struct qla_hw_data *ha; | |
1204 | uint8_t additional_fcpcdb_len; | |
1205 | uint16_t fcp_cmnd_len; | |
1206 | struct fcp_cmnd *fcp_cmnd; | |
1207 | dma_addr_t crc_ctx_dma; | |
ff2fc42e | 1208 | char tag[2]; |
bad75002 | 1209 | |
9ba56b95 | 1210 | cmd = GET_CMD_SP(sp); |
bad75002 AE |
1211 | |
1212 | sgc = 0; | |
1213 | /* Update entry type to indicate Command Type CRC_2 IOCB */ | |
1214 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
1215 | __constant_cpu_to_le32(COMMAND_TYPE_CRC_2); | |
1216 | ||
7c3df132 SK |
1217 | vha = sp->fcport->vha; |
1218 | ha = vha->hw; | |
1219 | ||
bad75002 AE |
1220 | /* No data transfer */ |
1221 | data_bytes = scsi_bufflen(cmd); | |
1222 | if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { | |
bad75002 AE |
1223 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
1224 | return QLA_SUCCESS; | |
1225 | } | |
1226 | ||
c6d39e23 | 1227 | cmd_pkt->vp_index = sp->fcport->vha->vp_idx; |
bad75002 AE |
1228 | |
1229 | /* Set transfer direction */ | |
1230 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { | |
1231 | cmd_pkt->control_flags = | |
1232 | __constant_cpu_to_le16(CF_WRITE_DATA); | |
1233 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
1234 | cmd_pkt->control_flags = | |
1235 | __constant_cpu_to_le16(CF_READ_DATA); | |
1236 | } | |
1237 | ||
9ba56b95 GM |
1238 | if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || |
1239 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP) || | |
1240 | (scsi_get_prot_op(cmd) == SCSI_PROT_READ_STRIP) || | |
1241 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_INSERT)) | |
bad75002 AE |
1242 | bundling = 0; |
1243 | ||
1244 | /* Allocate CRC context from global pool */ | |
9ba56b95 GM |
1245 | crc_ctx_pkt = sp->u.scmd.ctx = |
1246 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma); | |
bad75002 AE |
1247 | |
1248 | if (!crc_ctx_pkt) | |
1249 | goto crc_queuing_error; | |
1250 | ||
1251 | /* Zero out CTX area. */ | |
1252 | clr_ptr = (uint8_t *)crc_ctx_pkt; | |
1253 | memset(clr_ptr, 0, sizeof(*crc_ctx_pkt)); | |
1254 | ||
1255 | crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma; | |
1256 | ||
1257 | sp->flags |= SRB_CRC_CTX_DMA_VALID; | |
1258 | ||
1259 | /* Set handle */ | |
1260 | crc_ctx_pkt->handle = cmd_pkt->handle; | |
1261 | ||
1262 | INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list); | |
1263 | ||
e02587d7 | 1264 | qla24xx_set_t10dif_tags(sp, (struct fw_dif_context *) |
bad75002 AE |
1265 | &crc_ctx_pkt->ref_tag, tot_prot_dsds); |
1266 | ||
1267 | cmd_pkt->crc_context_address[0] = cpu_to_le32(LSD(crc_ctx_dma)); | |
1268 | cmd_pkt->crc_context_address[1] = cpu_to_le32(MSD(crc_ctx_dma)); | |
1269 | cmd_pkt->crc_context_len = CRC_CONTEXT_LEN_FW; | |
1270 | ||
1271 | /* Determine SCSI command length -- align to 4 byte boundary */ | |
1272 | if (cmd->cmd_len > 16) { | |
bad75002 AE |
1273 | additional_fcpcdb_len = cmd->cmd_len - 16; |
1274 | if ((cmd->cmd_len % 4) != 0) { | |
1275 | /* SCSI cmd > 16 bytes must be multiple of 4 */ | |
1276 | goto crc_queuing_error; | |
1277 | } | |
1278 | fcp_cmnd_len = 12 + cmd->cmd_len + 4; | |
1279 | } else { | |
1280 | additional_fcpcdb_len = 0; | |
1281 | fcp_cmnd_len = 12 + 16 + 4; | |
1282 | } | |
1283 | ||
1284 | fcp_cmnd = &crc_ctx_pkt->fcp_cmnd; | |
1285 | ||
1286 | fcp_cmnd->additional_cdb_len = additional_fcpcdb_len; | |
1287 | if (cmd->sc_data_direction == DMA_TO_DEVICE) | |
1288 | fcp_cmnd->additional_cdb_len |= 1; | |
1289 | else if (cmd->sc_data_direction == DMA_FROM_DEVICE) | |
1290 | fcp_cmnd->additional_cdb_len |= 2; | |
1291 | ||
9ba56b95 | 1292 | int_to_scsilun(cmd->device->lun, &fcp_cmnd->lun); |
bad75002 AE |
1293 | memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); |
1294 | cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len); | |
1295 | cmd_pkt->fcp_cmnd_dseg_address[0] = cpu_to_le32( | |
1296 | LSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF)); | |
1297 | cmd_pkt->fcp_cmnd_dseg_address[1] = cpu_to_le32( | |
1298 | MSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF)); | |
65155b37 | 1299 | fcp_cmnd->task_management = 0; |
bad75002 | 1300 | |
ff2fc42e AV |
1301 | /* |
1302 | * Update tagged queuing modifier if using command tag queuing | |
1303 | */ | |
1304 | if (scsi_populate_tag_msg(cmd, tag)) { | |
1305 | switch (tag[0]) { | |
1306 | case HEAD_OF_QUEUE_TAG: | |
1307 | fcp_cmnd->task_attribute = TSK_HEAD_OF_QUEUE; | |
1308 | break; | |
1309 | case ORDERED_QUEUE_TAG: | |
1310 | fcp_cmnd->task_attribute = TSK_ORDERED; | |
1311 | break; | |
1312 | default: | |
25ef8126 | 1313 | fcp_cmnd->task_attribute = TSK_SIMPLE; |
ff2fc42e AV |
1314 | break; |
1315 | } | |
1316 | } else { | |
25ef8126 | 1317 | fcp_cmnd->task_attribute = TSK_SIMPLE; |
ff2fc42e AV |
1318 | } |
1319 | ||
bad75002 AE |
1320 | cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */ |
1321 | ||
bad75002 | 1322 | /* Compute dif len and adjust data len to incude protection */ |
bad75002 AE |
1323 | dif_bytes = 0; |
1324 | blk_size = cmd->device->sector_size; | |
8cb2049c AE |
1325 | dif_bytes = (data_bytes / blk_size) * 8; |
1326 | ||
9ba56b95 | 1327 | switch (scsi_get_prot_op(GET_CMD_SP(sp))) { |
8cb2049c AE |
1328 | case SCSI_PROT_READ_INSERT: |
1329 | case SCSI_PROT_WRITE_STRIP: | |
1330 | total_bytes = data_bytes; | |
1331 | data_bytes += dif_bytes; | |
1332 | break; | |
1333 | ||
1334 | case SCSI_PROT_READ_STRIP: | |
1335 | case SCSI_PROT_WRITE_INSERT: | |
1336 | case SCSI_PROT_READ_PASS: | |
1337 | case SCSI_PROT_WRITE_PASS: | |
1338 | total_bytes = data_bytes + dif_bytes; | |
1339 | break; | |
1340 | default: | |
1341 | BUG(); | |
bad75002 AE |
1342 | } |
1343 | ||
e02587d7 | 1344 | if (!qla2x00_hba_err_chk_enabled(sp)) |
bad75002 | 1345 | fw_prot_opts |= 0x10; /* Disable Guard tag checking */ |
9e522cd8 AE |
1346 | /* HBA error checking enabled */ |
1347 | else if (IS_PI_UNINIT_CAPABLE(ha)) { | |
1348 | if ((scsi_get_prot_type(GET_CMD_SP(sp)) == SCSI_PROT_DIF_TYPE1) | |
1349 | || (scsi_get_prot_type(GET_CMD_SP(sp)) == | |
1350 | SCSI_PROT_DIF_TYPE2)) | |
1351 | fw_prot_opts |= BIT_10; | |
1352 | else if (scsi_get_prot_type(GET_CMD_SP(sp)) == | |
1353 | SCSI_PROT_DIF_TYPE3) | |
1354 | fw_prot_opts |= BIT_11; | |
1355 | } | |
bad75002 AE |
1356 | |
1357 | if (!bundling) { | |
1358 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address; | |
1359 | } else { | |
1360 | /* | |
1361 | * Configure Bundling if we need to fetch interlaving | |
1362 | * protection PCI accesses | |
1363 | */ | |
1364 | fw_prot_opts |= PO_ENABLE_DIF_BUNDLING; | |
1365 | crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes); | |
1366 | crc_ctx_pkt->u.bundling.dseg_count = cpu_to_le16(tot_dsds - | |
1367 | tot_prot_dsds); | |
1368 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.data_address; | |
1369 | } | |
1370 | ||
1371 | /* Finish the common fields of CRC pkt */ | |
1372 | crc_ctx_pkt->blk_size = cpu_to_le16(blk_size); | |
1373 | crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts); | |
1374 | crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); | |
1375 | crc_ctx_pkt->guard_seed = __constant_cpu_to_le16(0); | |
1376 | /* Fibre channel byte count */ | |
1377 | cmd_pkt->byte_count = cpu_to_le32(total_bytes); | |
1378 | fcp_dl = (uint32_t *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 + | |
1379 | additional_fcpcdb_len); | |
1380 | *fcp_dl = htonl(total_bytes); | |
1381 | ||
0c470874 | 1382 | if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { |
0c470874 AE |
1383 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
1384 | return QLA_SUCCESS; | |
1385 | } | |
bad75002 AE |
1386 | /* Walks data segments */ |
1387 | ||
1388 | cmd_pkt->control_flags |= | |
1389 | __constant_cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE); | |
8cb2049c AE |
1390 | |
1391 | if (!bundling && tot_prot_dsds) { | |
1392 | if (qla24xx_walk_and_build_sglist_no_difb(ha, sp, | |
1393 | cur_dsd, tot_dsds)) | |
1394 | goto crc_queuing_error; | |
1395 | } else if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd, | |
bad75002 AE |
1396 | (tot_dsds - tot_prot_dsds))) |
1397 | goto crc_queuing_error; | |
1398 | ||
1399 | if (bundling && tot_prot_dsds) { | |
1400 | /* Walks dif segments */ | |
1401 | cur_seg = scsi_prot_sglist(cmd); | |
1402 | cmd_pkt->control_flags |= | |
1403 | __constant_cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE); | |
1404 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address; | |
1405 | if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd, | |
1406 | tot_prot_dsds)) | |
1407 | goto crc_queuing_error; | |
1408 | } | |
1409 | return QLA_SUCCESS; | |
1410 | ||
1411 | crc_queuing_error: | |
bad75002 AE |
1412 | /* Cleanup will be performed by the caller */ |
1413 | ||
1414 | return QLA_FUNCTION_FAILED; | |
1415 | } | |
2b6c0cee AV |
1416 | |
1417 | /** | |
1418 | * qla24xx_start_scsi() - Send a SCSI command to the ISP | |
1419 | * @sp: command to send to the ISP | |
1420 | * | |
cc3ef7bc | 1421 | * Returns non-zero if a failure occurred, else zero. |
2b6c0cee AV |
1422 | */ |
1423 | int | |
1424 | qla24xx_start_scsi(srb_t *sp) | |
1425 | { | |
385d70b4 | 1426 | int ret, nseg; |
2b6c0cee | 1427 | unsigned long flags; |
2b6c0cee AV |
1428 | uint32_t *clr_ptr; |
1429 | uint32_t index; | |
1430 | uint32_t handle; | |
1431 | struct cmd_type_7 *cmd_pkt; | |
2b6c0cee AV |
1432 | uint16_t cnt; |
1433 | uint16_t req_cnt; | |
1434 | uint16_t tot_dsds; | |
73208dfd AC |
1435 | struct req_que *req = NULL; |
1436 | struct rsp_que *rsp = NULL; | |
9ba56b95 | 1437 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
444786d7 | 1438 | struct scsi_qla_host *vha = sp->fcport->vha; |
73208dfd | 1439 | struct qla_hw_data *ha = vha->hw; |
ff2fc42e | 1440 | char tag[2]; |
2b6c0cee AV |
1441 | |
1442 | /* Setup device pointers. */ | |
1443 | ret = 0; | |
73208dfd | 1444 | |
59e0b8b0 AC |
1445 | qla25xx_set_que(sp, &rsp); |
1446 | req = vha->req; | |
73208dfd | 1447 | |
2b6c0cee AV |
1448 | /* So we know we haven't pci_map'ed anything yet */ |
1449 | tot_dsds = 0; | |
1450 | ||
1451 | /* Send marker if required */ | |
e315cd28 | 1452 | if (vha->marker_needed != 0) { |
7c3df132 SK |
1453 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != |
1454 | QLA_SUCCESS) | |
2b6c0cee | 1455 | return QLA_FUNCTION_FAILED; |
e315cd28 | 1456 | vha->marker_needed = 0; |
2b6c0cee AV |
1457 | } |
1458 | ||
1459 | /* Acquire ring specific lock */ | |
e315cd28 | 1460 | spin_lock_irqsave(&ha->hardware_lock, flags); |
2b6c0cee AV |
1461 | |
1462 | /* Check for room in outstanding command list. */ | |
e315cd28 | 1463 | handle = req->current_outstanding_cmd; |
8d93f550 | 1464 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
2b6c0cee | 1465 | handle++; |
8d93f550 | 1466 | if (handle == req->num_outstanding_cmds) |
2b6c0cee | 1467 | handle = 1; |
e315cd28 | 1468 | if (!req->outstanding_cmds[handle]) |
2b6c0cee AV |
1469 | break; |
1470 | } | |
8d93f550 | 1471 | if (index == req->num_outstanding_cmds) |
2b6c0cee AV |
1472 | goto queuing_error; |
1473 | ||
1474 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
2c3dfe3f SJ |
1475 | if (scsi_sg_count(cmd)) { |
1476 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
1477 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
1478 | if (unlikely(!nseg)) | |
2b6c0cee | 1479 | goto queuing_error; |
2c3dfe3f SJ |
1480 | } else |
1481 | nseg = 0; | |
1482 | ||
385d70b4 | 1483 | tot_dsds = nseg; |
7c3df132 | 1484 | req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); |
e315cd28 | 1485 | if (req->cnt < (req_cnt + 2)) { |
08029990 | 1486 | cnt = RD_REG_DWORD_RELAXED(req->req_q_out); |
73208dfd | 1487 | |
e315cd28 AC |
1488 | if (req->ring_index < cnt) |
1489 | req->cnt = cnt - req->ring_index; | |
2b6c0cee | 1490 | else |
e315cd28 AC |
1491 | req->cnt = req->length - |
1492 | (req->ring_index - cnt); | |
a6eb3c9f CL |
1493 | if (req->cnt < (req_cnt + 2)) |
1494 | goto queuing_error; | |
2b6c0cee | 1495 | } |
2b6c0cee AV |
1496 | |
1497 | /* Build command packet. */ | |
e315cd28 AC |
1498 | req->current_outstanding_cmd = handle; |
1499 | req->outstanding_cmds[handle] = sp; | |
cf53b069 | 1500 | sp->handle = handle; |
9ba56b95 | 1501 | cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
e315cd28 | 1502 | req->cnt -= req_cnt; |
2b6c0cee | 1503 | |
e315cd28 | 1504 | cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; |
2afa19a9 | 1505 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); |
2b6c0cee AV |
1506 | |
1507 | /* Zero out remaining portion of packet. */ | |
72df8325 | 1508 | /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ |
2b6c0cee AV |
1509 | clr_ptr = (uint32_t *)cmd_pkt + 2; |
1510 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
1511 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
1512 | ||
1513 | /* Set NPORT-ID and LUN number*/ | |
1514 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1515 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1516 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
1517 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 1518 | cmd_pkt->vp_index = sp->fcport->vha->vp_idx; |
2b6c0cee | 1519 | |
9ba56b95 | 1520 | int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); |
0d4be124 | 1521 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); |
2b6c0cee | 1522 | |
ff2fc42e AV |
1523 | /* Update tagged queuing modifier -- default is TSK_SIMPLE (0). */ |
1524 | if (scsi_populate_tag_msg(cmd, tag)) { | |
1525 | switch (tag[0]) { | |
1526 | case HEAD_OF_QUEUE_TAG: | |
1527 | cmd_pkt->task = TSK_HEAD_OF_QUEUE; | |
1528 | break; | |
1529 | case ORDERED_QUEUE_TAG: | |
1530 | cmd_pkt->task = TSK_ORDERED; | |
1531 | break; | |
25ef8126 SK |
1532 | default: |
1533 | cmd_pkt->task = TSK_SIMPLE; | |
1534 | break; | |
ff2fc42e | 1535 | } |
25ef8126 SK |
1536 | } else { |
1537 | cmd_pkt->task = TSK_SIMPLE; | |
ff2fc42e AV |
1538 | } |
1539 | ||
2b6c0cee AV |
1540 | /* Load SCSI command packet. */ |
1541 | memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); | |
1542 | host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); | |
1543 | ||
385d70b4 | 1544 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); |
2b6c0cee AV |
1545 | |
1546 | /* Build IOCB segments */ | |
1547 | qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds); | |
1548 | ||
1549 | /* Set total data segment count. */ | |
1550 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
2afa19a9 AC |
1551 | /* Specify response queue number where completion should happen */ |
1552 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2b6c0cee | 1553 | wmb(); |
2b6c0cee | 1554 | /* Adjust ring index. */ |
e315cd28 AC |
1555 | req->ring_index++; |
1556 | if (req->ring_index == req->length) { | |
1557 | req->ring_index = 0; | |
1558 | req->ring_ptr = req->ring; | |
2b6c0cee | 1559 | } else |
e315cd28 | 1560 | req->ring_ptr++; |
2b6c0cee AV |
1561 | |
1562 | sp->flags |= SRB_DMA_VALID; | |
2b6c0cee AV |
1563 | |
1564 | /* Set chip new ring index. */ | |
08029990 AV |
1565 | WRT_REG_DWORD(req->req_q_in, req->ring_index); |
1566 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); | |
2b6c0cee | 1567 | |
4fdfefe5 | 1568 | /* Manage unprocessed RIO/ZIO commands in response queue. */ |
e315cd28 | 1569 | if (vha->flags.process_response_queue && |
73208dfd | 1570 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) |
2afa19a9 | 1571 | qla24xx_process_response_queue(vha, rsp); |
4fdfefe5 | 1572 | |
e315cd28 | 1573 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2b6c0cee AV |
1574 | return QLA_SUCCESS; |
1575 | ||
1576 | queuing_error: | |
385d70b4 FT |
1577 | if (tot_dsds) |
1578 | scsi_dma_unmap(cmd); | |
1579 | ||
e315cd28 | 1580 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2b6c0cee AV |
1581 | |
1582 | return QLA_FUNCTION_FAILED; | |
1da177e4 | 1583 | } |
68ca949c | 1584 | |
bad75002 AE |
1585 | /** |
1586 | * qla24xx_dif_start_scsi() - Send a SCSI command to the ISP | |
1587 | * @sp: command to send to the ISP | |
1588 | * | |
1589 | * Returns non-zero if a failure occurred, else zero. | |
1590 | */ | |
1591 | int | |
1592 | qla24xx_dif_start_scsi(srb_t *sp) | |
1593 | { | |
1594 | int nseg; | |
1595 | unsigned long flags; | |
1596 | uint32_t *clr_ptr; | |
1597 | uint32_t index; | |
1598 | uint32_t handle; | |
1599 | uint16_t cnt; | |
1600 | uint16_t req_cnt = 0; | |
1601 | uint16_t tot_dsds; | |
1602 | uint16_t tot_prot_dsds; | |
1603 | uint16_t fw_prot_opts = 0; | |
1604 | struct req_que *req = NULL; | |
1605 | struct rsp_que *rsp = NULL; | |
9ba56b95 | 1606 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
bad75002 AE |
1607 | struct scsi_qla_host *vha = sp->fcport->vha; |
1608 | struct qla_hw_data *ha = vha->hw; | |
1609 | struct cmd_type_crc_2 *cmd_pkt; | |
1610 | uint32_t status = 0; | |
1611 | ||
1612 | #define QDSS_GOT_Q_SPACE BIT_0 | |
1613 | ||
0c470874 AE |
1614 | /* Only process protection or >16 cdb in this routine */ |
1615 | if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { | |
1616 | if (cmd->cmd_len <= 16) | |
1617 | return qla24xx_start_scsi(sp); | |
1618 | } | |
bad75002 AE |
1619 | |
1620 | /* Setup device pointers. */ | |
1621 | ||
1622 | qla25xx_set_que(sp, &rsp); | |
1623 | req = vha->req; | |
1624 | ||
1625 | /* So we know we haven't pci_map'ed anything yet */ | |
1626 | tot_dsds = 0; | |
1627 | ||
1628 | /* Send marker if required */ | |
1629 | if (vha->marker_needed != 0) { | |
1630 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != | |
1631 | QLA_SUCCESS) | |
1632 | return QLA_FUNCTION_FAILED; | |
1633 | vha->marker_needed = 0; | |
1634 | } | |
1635 | ||
1636 | /* Acquire ring specific lock */ | |
1637 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
1638 | ||
1639 | /* Check for room in outstanding command list. */ | |
1640 | handle = req->current_outstanding_cmd; | |
8d93f550 | 1641 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
bad75002 | 1642 | handle++; |
8d93f550 | 1643 | if (handle == req->num_outstanding_cmds) |
bad75002 AE |
1644 | handle = 1; |
1645 | if (!req->outstanding_cmds[handle]) | |
1646 | break; | |
1647 | } | |
1648 | ||
8d93f550 | 1649 | if (index == req->num_outstanding_cmds) |
bad75002 AE |
1650 | goto queuing_error; |
1651 | ||
1652 | /* Compute number of required data segments */ | |
1653 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
1654 | if (scsi_sg_count(cmd)) { | |
1655 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
1656 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
1657 | if (unlikely(!nseg)) | |
1658 | goto queuing_error; | |
1659 | else | |
1660 | sp->flags |= SRB_DMA_VALID; | |
8cb2049c AE |
1661 | |
1662 | if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || | |
1663 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { | |
1664 | struct qla2_sgx sgx; | |
1665 | uint32_t partial; | |
1666 | ||
1667 | memset(&sgx, 0, sizeof(struct qla2_sgx)); | |
1668 | sgx.tot_bytes = scsi_bufflen(cmd); | |
1669 | sgx.cur_sg = scsi_sglist(cmd); | |
1670 | sgx.sp = sp; | |
1671 | ||
1672 | nseg = 0; | |
1673 | while (qla24xx_get_one_block_sg( | |
1674 | cmd->device->sector_size, &sgx, &partial)) | |
1675 | nseg++; | |
1676 | } | |
bad75002 AE |
1677 | } else |
1678 | nseg = 0; | |
1679 | ||
1680 | /* number of required data segments */ | |
1681 | tot_dsds = nseg; | |
1682 | ||
1683 | /* Compute number of required protection segments */ | |
1684 | if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { | |
1685 | nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), | |
1686 | scsi_prot_sg_count(cmd), cmd->sc_data_direction); | |
1687 | if (unlikely(!nseg)) | |
1688 | goto queuing_error; | |
1689 | else | |
1690 | sp->flags |= SRB_CRC_PROT_DMA_VALID; | |
8cb2049c AE |
1691 | |
1692 | if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || | |
1693 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { | |
1694 | nseg = scsi_bufflen(cmd) / cmd->device->sector_size; | |
1695 | } | |
bad75002 AE |
1696 | } else { |
1697 | nseg = 0; | |
1698 | } | |
1699 | ||
1700 | req_cnt = 1; | |
1701 | /* Total Data and protection sg segment(s) */ | |
1702 | tot_prot_dsds = nseg; | |
1703 | tot_dsds += nseg; | |
1704 | if (req->cnt < (req_cnt + 2)) { | |
1705 | cnt = RD_REG_DWORD_RELAXED(req->req_q_out); | |
1706 | ||
1707 | if (req->ring_index < cnt) | |
1708 | req->cnt = cnt - req->ring_index; | |
1709 | else | |
1710 | req->cnt = req->length - | |
1711 | (req->ring_index - cnt); | |
a6eb3c9f CL |
1712 | if (req->cnt < (req_cnt + 2)) |
1713 | goto queuing_error; | |
bad75002 AE |
1714 | } |
1715 | ||
bad75002 AE |
1716 | status |= QDSS_GOT_Q_SPACE; |
1717 | ||
1718 | /* Build header part of command packet (excluding the OPCODE). */ | |
1719 | req->current_outstanding_cmd = handle; | |
1720 | req->outstanding_cmds[handle] = sp; | |
8cb2049c | 1721 | sp->handle = handle; |
9ba56b95 | 1722 | cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
bad75002 AE |
1723 | req->cnt -= req_cnt; |
1724 | ||
1725 | /* Fill-in common area */ | |
1726 | cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; | |
1727 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
1728 | ||
1729 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
1730 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
1731 | ||
1732 | /* Set NPORT-ID and LUN number*/ | |
1733 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1734 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1735 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
1736 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
1737 | ||
9ba56b95 | 1738 | int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); |
bad75002 AE |
1739 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); |
1740 | ||
1741 | /* Total Data and protection segment(s) */ | |
1742 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
1743 | ||
1744 | /* Build IOCB segments and adjust for data protection segments */ | |
1745 | if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) | |
1746 | req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != | |
1747 | QLA_SUCCESS) | |
1748 | goto queuing_error; | |
1749 | ||
1750 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
1751 | /* Specify response queue number where completion should happen */ | |
1752 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
1753 | cmd_pkt->timeout = __constant_cpu_to_le16(0); | |
1754 | wmb(); | |
1755 | ||
1756 | /* Adjust ring index. */ | |
1757 | req->ring_index++; | |
1758 | if (req->ring_index == req->length) { | |
1759 | req->ring_index = 0; | |
1760 | req->ring_ptr = req->ring; | |
1761 | } else | |
1762 | req->ring_ptr++; | |
1763 | ||
1764 | /* Set chip new ring index. */ | |
1765 | WRT_REG_DWORD(req->req_q_in, req->ring_index); | |
1766 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); | |
1767 | ||
1768 | /* Manage unprocessed RIO/ZIO commands in response queue. */ | |
1769 | if (vha->flags.process_response_queue && | |
1770 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) | |
1771 | qla24xx_process_response_queue(vha, rsp); | |
1772 | ||
1773 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
1774 | ||
1775 | return QLA_SUCCESS; | |
1776 | ||
1777 | queuing_error: | |
1778 | if (status & QDSS_GOT_Q_SPACE) { | |
1779 | req->outstanding_cmds[handle] = NULL; | |
1780 | req->cnt += req_cnt; | |
1781 | } | |
1782 | /* Cleanup will be performed by the caller (queuecommand) */ | |
1783 | ||
1784 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
bad75002 AE |
1785 | return QLA_FUNCTION_FAILED; |
1786 | } | |
1787 | ||
1788 | ||
59e0b8b0 | 1789 | static void qla25xx_set_que(srb_t *sp, struct rsp_que **rsp) |
68ca949c | 1790 | { |
9ba56b95 | 1791 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
68ca949c AC |
1792 | struct qla_hw_data *ha = sp->fcport->vha->hw; |
1793 | int affinity = cmd->request->cpu; | |
1794 | ||
7163ea81 | 1795 | if (ha->flags.cpu_affinity_enabled && affinity >= 0 && |
59e0b8b0 | 1796 | affinity < ha->max_rsp_queues - 1) |
68ca949c | 1797 | *rsp = ha->rsp_q_map[affinity + 1]; |
59e0b8b0 | 1798 | else |
68ca949c | 1799 | *rsp = ha->rsp_q_map[0]; |
68ca949c | 1800 | } |
ac280b67 AV |
1801 | |
1802 | /* Generic Control-SRB manipulation functions. */ | |
d94d10e7 GM |
1803 | void * |
1804 | qla2x00_alloc_iocbs(scsi_qla_host_t *vha, srb_t *sp) | |
ac280b67 | 1805 | { |
ac280b67 AV |
1806 | struct qla_hw_data *ha = vha->hw; |
1807 | struct req_que *req = ha->req_q_map[0]; | |
1808 | device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); | |
1809 | uint32_t index, handle; | |
1810 | request_t *pkt; | |
1811 | uint16_t cnt, req_cnt; | |
1812 | ||
1813 | pkt = NULL; | |
1814 | req_cnt = 1; | |
d94d10e7 GM |
1815 | handle = 0; |
1816 | ||
1817 | if (!sp) | |
1818 | goto skip_cmd_array; | |
ac280b67 AV |
1819 | |
1820 | /* Check for room in outstanding command list. */ | |
1821 | handle = req->current_outstanding_cmd; | |
8d93f550 | 1822 | for (index = 1; req->num_outstanding_cmds; index++) { |
ac280b67 | 1823 | handle++; |
8d93f550 | 1824 | if (handle == req->num_outstanding_cmds) |
ac280b67 AV |
1825 | handle = 1; |
1826 | if (!req->outstanding_cmds[handle]) | |
1827 | break; | |
1828 | } | |
8d93f550 | 1829 | if (index == req->num_outstanding_cmds) { |
7c3df132 | 1830 | ql_log(ql_log_warn, vha, 0x700b, |
d6a03581 | 1831 | "No room on outstanding cmd array.\n"); |
ac280b67 | 1832 | goto queuing_error; |
7c3df132 | 1833 | } |
ac280b67 | 1834 | |
d94d10e7 GM |
1835 | /* Prep command array. */ |
1836 | req->current_outstanding_cmd = handle; | |
1837 | req->outstanding_cmds[handle] = sp; | |
1838 | sp->handle = handle; | |
1839 | ||
5780790e | 1840 | /* Adjust entry-counts as needed. */ |
9ba56b95 GM |
1841 | if (sp->type != SRB_SCSI_CMD) |
1842 | req_cnt = sp->iocbs; | |
5780790e | 1843 | |
d94d10e7 | 1844 | skip_cmd_array: |
ac280b67 AV |
1845 | /* Check for room on request queue. */ |
1846 | if (req->cnt < req_cnt) { | |
6246b8a1 | 1847 | if (ha->mqenable || IS_QLA83XX(ha)) |
ac280b67 | 1848 | cnt = RD_REG_DWORD(®->isp25mq.req_q_out); |
d94d10e7 GM |
1849 | else if (IS_QLA82XX(ha)) |
1850 | cnt = RD_REG_DWORD(®->isp82.req_q_out); | |
ac280b67 AV |
1851 | else if (IS_FWI2_CAPABLE(ha)) |
1852 | cnt = RD_REG_DWORD(®->isp24.req_q_out); | |
8ae6d9c7 GM |
1853 | else if (IS_QLAFX00(ha)) |
1854 | cnt = RD_REG_DWORD(®->ispfx00.req_q_out); | |
ac280b67 AV |
1855 | else |
1856 | cnt = qla2x00_debounce_register( | |
1857 | ISP_REQ_Q_OUT(ha, ®->isp)); | |
1858 | ||
1859 | if (req->ring_index < cnt) | |
1860 | req->cnt = cnt - req->ring_index; | |
1861 | else | |
1862 | req->cnt = req->length - | |
1863 | (req->ring_index - cnt); | |
1864 | } | |
1865 | if (req->cnt < req_cnt) | |
1866 | goto queuing_error; | |
1867 | ||
1868 | /* Prep packet */ | |
ac280b67 | 1869 | req->cnt -= req_cnt; |
ac280b67 AV |
1870 | pkt = req->ring_ptr; |
1871 | memset(pkt, 0, REQUEST_ENTRY_SIZE); | |
8ae6d9c7 GM |
1872 | if (IS_QLAFX00(ha)) { |
1873 | WRT_REG_BYTE(&pkt->entry_count, req_cnt); | |
1874 | WRT_REG_WORD(&pkt->handle, handle); | |
1875 | } else { | |
1876 | pkt->entry_count = req_cnt; | |
1877 | pkt->handle = handle; | |
1878 | } | |
ac280b67 AV |
1879 | |
1880 | queuing_error: | |
1881 | return pkt; | |
1882 | } | |
1883 | ||
ac280b67 AV |
1884 | static void |
1885 | qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1886 | { | |
9ba56b95 | 1887 | struct srb_iocb *lio = &sp->u.iocb_cmd; |
ac280b67 AV |
1888 | |
1889 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1890 | logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); | |
4916392b | 1891 | if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI) |
ac280b67 | 1892 | logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI); |
4916392b | 1893 | if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI) |
ac280b67 AV |
1894 | logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI); |
1895 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1896 | logio->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1897 | logio->port_id[1] = sp->fcport->d_id.b.area; | |
1898 | logio->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 1899 | logio->vp_index = sp->fcport->vha->vp_idx; |
ac280b67 AV |
1900 | } |
1901 | ||
1902 | static void | |
1903 | qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1904 | { | |
1905 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
9ba56b95 | 1906 | struct srb_iocb *lio = &sp->u.iocb_cmd; |
ac280b67 AV |
1907 | uint16_t opts; |
1908 | ||
b963752f | 1909 | mbx->entry_type = MBX_IOCB_TYPE; |
ac280b67 AV |
1910 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); |
1911 | mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT); | |
4916392b MI |
1912 | opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0; |
1913 | opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0; | |
ac280b67 AV |
1914 | if (HAS_EXTENDED_IDS(ha)) { |
1915 | mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); | |
1916 | mbx->mb10 = cpu_to_le16(opts); | |
1917 | } else { | |
1918 | mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts); | |
1919 | } | |
1920 | mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); | |
1921 | mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | | |
1922 | sp->fcport->d_id.b.al_pa); | |
c6d39e23 | 1923 | mbx->mb9 = cpu_to_le16(sp->fcport->vha->vp_idx); |
ac280b67 AV |
1924 | } |
1925 | ||
1926 | static void | |
1927 | qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1928 | { | |
1929 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1930 | logio->control_flags = | |
1931 | cpu_to_le16(LCF_COMMAND_LOGO|LCF_IMPL_LOGO); | |
1932 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1933 | logio->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1934 | logio->port_id[1] = sp->fcport->d_id.b.area; | |
1935 | logio->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 1936 | logio->vp_index = sp->fcport->vha->vp_idx; |
ac280b67 AV |
1937 | } |
1938 | ||
1939 | static void | |
1940 | qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1941 | { | |
1942 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1943 | ||
b963752f | 1944 | mbx->entry_type = MBX_IOCB_TYPE; |
ac280b67 AV |
1945 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); |
1946 | mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT); | |
1947 | mbx->mb1 = HAS_EXTENDED_IDS(ha) ? | |
1948 | cpu_to_le16(sp->fcport->loop_id): | |
1949 | cpu_to_le16(sp->fcport->loop_id << 8); | |
1950 | mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); | |
1951 | mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | | |
1952 | sp->fcport->d_id.b.al_pa); | |
c6d39e23 | 1953 | mbx->mb9 = cpu_to_le16(sp->fcport->vha->vp_idx); |
ac280b67 AV |
1954 | /* Implicit: mbx->mbx10 = 0. */ |
1955 | } | |
1956 | ||
5ff1d584 AV |
1957 | static void |
1958 | qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1959 | { | |
1960 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1961 | logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC); | |
1962 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
c6d39e23 | 1963 | logio->vp_index = sp->fcport->vha->vp_idx; |
5ff1d584 AV |
1964 | } |
1965 | ||
1966 | static void | |
1967 | qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1968 | { | |
1969 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1970 | ||
1971 | mbx->entry_type = MBX_IOCB_TYPE; | |
1972 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); | |
1973 | mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE); | |
1974 | if (HAS_EXTENDED_IDS(ha)) { | |
1975 | mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); | |
1976 | mbx->mb10 = cpu_to_le16(BIT_0); | |
1977 | } else { | |
1978 | mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0); | |
1979 | } | |
1980 | mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma)); | |
1981 | mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma)); | |
1982 | mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma))); | |
1983 | mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma))); | |
c6d39e23 | 1984 | mbx->mb9 = cpu_to_le16(sp->fcport->vha->vp_idx); |
5ff1d584 AV |
1985 | } |
1986 | ||
3822263e MI |
1987 | static void |
1988 | qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk) | |
1989 | { | |
1990 | uint32_t flags; | |
1991 | unsigned int lun; | |
1992 | struct fc_port *fcport = sp->fcport; | |
1993 | scsi_qla_host_t *vha = fcport->vha; | |
1994 | struct qla_hw_data *ha = vha->hw; | |
9ba56b95 | 1995 | struct srb_iocb *iocb = &sp->u.iocb_cmd; |
3822263e MI |
1996 | struct req_que *req = vha->req; |
1997 | ||
1998 | flags = iocb->u.tmf.flags; | |
1999 | lun = iocb->u.tmf.lun; | |
2000 | ||
2001 | tsk->entry_type = TSK_MGMT_IOCB_TYPE; | |
2002 | tsk->entry_count = 1; | |
2003 | tsk->handle = MAKE_HANDLE(req->id, tsk->handle); | |
2004 | tsk->nport_handle = cpu_to_le16(fcport->loop_id); | |
2005 | tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); | |
2006 | tsk->control_flags = cpu_to_le32(flags); | |
2007 | tsk->port_id[0] = fcport->d_id.b.al_pa; | |
2008 | tsk->port_id[1] = fcport->d_id.b.area; | |
2009 | tsk->port_id[2] = fcport->d_id.b.domain; | |
c6d39e23 | 2010 | tsk->vp_index = fcport->vha->vp_idx; |
3822263e MI |
2011 | |
2012 | if (flags == TCF_LUN_RESET) { | |
2013 | int_to_scsilun(lun, &tsk->lun); | |
2014 | host_to_fcp_swap((uint8_t *)&tsk->lun, | |
2015 | sizeof(tsk->lun)); | |
2016 | } | |
2017 | } | |
2018 | ||
9a069e19 GM |
2019 | static void |
2020 | qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) | |
2021 | { | |
9ba56b95 | 2022 | struct fc_bsg_job *bsg_job = sp->u.bsg_job; |
9a069e19 GM |
2023 | |
2024 | els_iocb->entry_type = ELS_IOCB_TYPE; | |
2025 | els_iocb->entry_count = 1; | |
2026 | els_iocb->sys_define = 0; | |
2027 | els_iocb->entry_status = 0; | |
2028 | els_iocb->handle = sp->handle; | |
2029 | els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2030 | els_iocb->tx_dsd_count = __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
c6d39e23 | 2031 | els_iocb->vp_index = sp->fcport->vha->vp_idx; |
9a069e19 GM |
2032 | els_iocb->sof_type = EST_SOFI3; |
2033 | els_iocb->rx_dsd_count = __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
2034 | ||
4916392b | 2035 | els_iocb->opcode = |
9ba56b95 | 2036 | sp->type == SRB_ELS_CMD_RPT ? |
4916392b MI |
2037 | bsg_job->request->rqst_data.r_els.els_code : |
2038 | bsg_job->request->rqst_data.h_els.command_code; | |
9a069e19 GM |
2039 | els_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; |
2040 | els_iocb->port_id[1] = sp->fcport->d_id.b.area; | |
2041 | els_iocb->port_id[2] = sp->fcport->d_id.b.domain; | |
2042 | els_iocb->control_flags = 0; | |
2043 | els_iocb->rx_byte_count = | |
2044 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2045 | els_iocb->tx_byte_count = | |
2046 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2047 | ||
2048 | els_iocb->tx_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2049 | (bsg_job->request_payload.sg_list))); | |
2050 | els_iocb->tx_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2051 | (bsg_job->request_payload.sg_list))); | |
2052 | els_iocb->tx_len = cpu_to_le32(sg_dma_len | |
2053 | (bsg_job->request_payload.sg_list)); | |
2054 | ||
2055 | els_iocb->rx_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2056 | (bsg_job->reply_payload.sg_list))); | |
2057 | els_iocb->rx_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2058 | (bsg_job->reply_payload.sg_list))); | |
2059 | els_iocb->rx_len = cpu_to_le32(sg_dma_len | |
2060 | (bsg_job->reply_payload.sg_list)); | |
2061 | } | |
2062 | ||
9bc4f4fb HZ |
2063 | static void |
2064 | qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb) | |
2065 | { | |
2066 | uint16_t avail_dsds; | |
2067 | uint32_t *cur_dsd; | |
2068 | struct scatterlist *sg; | |
2069 | int index; | |
2070 | uint16_t tot_dsds; | |
2071 | scsi_qla_host_t *vha = sp->fcport->vha; | |
2072 | struct qla_hw_data *ha = vha->hw; | |
9ba56b95 | 2073 | struct fc_bsg_job *bsg_job = sp->u.bsg_job; |
9bc4f4fb HZ |
2074 | int loop_iterartion = 0; |
2075 | int cont_iocb_prsnt = 0; | |
2076 | int entry_count = 1; | |
2077 | ||
2078 | memset(ct_iocb, 0, sizeof(ms_iocb_entry_t)); | |
2079 | ct_iocb->entry_type = CT_IOCB_TYPE; | |
2080 | ct_iocb->entry_status = 0; | |
2081 | ct_iocb->handle1 = sp->handle; | |
2082 | SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id); | |
2083 | ct_iocb->status = __constant_cpu_to_le16(0); | |
2084 | ct_iocb->control_flags = __constant_cpu_to_le16(0); | |
2085 | ct_iocb->timeout = 0; | |
2086 | ct_iocb->cmd_dsd_count = | |
2087 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
2088 | ct_iocb->total_dsd_count = | |
2089 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt + 1); | |
2090 | ct_iocb->req_bytecount = | |
2091 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2092 | ct_iocb->rsp_bytecount = | |
2093 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2094 | ||
2095 | ct_iocb->dseg_req_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2096 | (bsg_job->request_payload.sg_list))); | |
2097 | ct_iocb->dseg_req_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2098 | (bsg_job->request_payload.sg_list))); | |
2099 | ct_iocb->dseg_req_length = ct_iocb->req_bytecount; | |
2100 | ||
2101 | ct_iocb->dseg_rsp_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2102 | (bsg_job->reply_payload.sg_list))); | |
2103 | ct_iocb->dseg_rsp_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2104 | (bsg_job->reply_payload.sg_list))); | |
2105 | ct_iocb->dseg_rsp_length = ct_iocb->rsp_bytecount; | |
2106 | ||
2107 | avail_dsds = 1; | |
2108 | cur_dsd = (uint32_t *)ct_iocb->dseg_rsp_address; | |
2109 | index = 0; | |
2110 | tot_dsds = bsg_job->reply_payload.sg_cnt; | |
2111 | ||
2112 | for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { | |
2113 | dma_addr_t sle_dma; | |
2114 | cont_a64_entry_t *cont_pkt; | |
2115 | ||
2116 | /* Allocate additional continuation packets? */ | |
2117 | if (avail_dsds == 0) { | |
2118 | /* | |
2119 | * Five DSDs are available in the Cont. | |
2120 | * Type 1 IOCB. | |
2121 | */ | |
0d2aa38e GM |
2122 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, |
2123 | vha->hw->req_q_map[0]); | |
9bc4f4fb HZ |
2124 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; |
2125 | avail_dsds = 5; | |
2126 | cont_iocb_prsnt = 1; | |
2127 | entry_count++; | |
2128 | } | |
2129 | ||
2130 | sle_dma = sg_dma_address(sg); | |
2131 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2132 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2133 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2134 | loop_iterartion++; | |
2135 | avail_dsds--; | |
2136 | } | |
2137 | ct_iocb->entry_count = entry_count; | |
2138 | } | |
2139 | ||
9a069e19 GM |
2140 | static void |
2141 | qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) | |
2142 | { | |
2143 | uint16_t avail_dsds; | |
2144 | uint32_t *cur_dsd; | |
2145 | struct scatterlist *sg; | |
2146 | int index; | |
2147 | uint16_t tot_dsds; | |
2148 | scsi_qla_host_t *vha = sp->fcport->vha; | |
0d2aa38e | 2149 | struct qla_hw_data *ha = vha->hw; |
9ba56b95 | 2150 | struct fc_bsg_job *bsg_job = sp->u.bsg_job; |
9a069e19 GM |
2151 | int loop_iterartion = 0; |
2152 | int cont_iocb_prsnt = 0; | |
2153 | int entry_count = 1; | |
2154 | ||
2155 | ct_iocb->entry_type = CT_IOCB_TYPE; | |
2156 | ct_iocb->entry_status = 0; | |
2157 | ct_iocb->sys_define = 0; | |
2158 | ct_iocb->handle = sp->handle; | |
2159 | ||
2160 | ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
c6d39e23 | 2161 | ct_iocb->vp_index = sp->fcport->vha->vp_idx; |
9a069e19 GM |
2162 | ct_iocb->comp_status = __constant_cpu_to_le16(0); |
2163 | ||
2164 | ct_iocb->cmd_dsd_count = | |
2165 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
2166 | ct_iocb->timeout = 0; | |
2167 | ct_iocb->rsp_dsd_count = | |
2168 | __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
2169 | ct_iocb->rsp_byte_count = | |
2170 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2171 | ct_iocb->cmd_byte_count = | |
2172 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2173 | ct_iocb->dseg_0_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2174 | (bsg_job->request_payload.sg_list))); | |
2175 | ct_iocb->dseg_0_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2176 | (bsg_job->request_payload.sg_list))); | |
2177 | ct_iocb->dseg_0_len = cpu_to_le32(sg_dma_len | |
2178 | (bsg_job->request_payload.sg_list)); | |
2179 | ||
2180 | avail_dsds = 1; | |
2181 | cur_dsd = (uint32_t *)ct_iocb->dseg_1_address; | |
2182 | index = 0; | |
2183 | tot_dsds = bsg_job->reply_payload.sg_cnt; | |
2184 | ||
2185 | for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { | |
2186 | dma_addr_t sle_dma; | |
2187 | cont_a64_entry_t *cont_pkt; | |
2188 | ||
2189 | /* Allocate additional continuation packets? */ | |
2190 | if (avail_dsds == 0) { | |
2191 | /* | |
2192 | * Five DSDs are available in the Cont. | |
2193 | * Type 1 IOCB. | |
2194 | */ | |
0d2aa38e GM |
2195 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, |
2196 | ha->req_q_map[0]); | |
9a069e19 GM |
2197 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; |
2198 | avail_dsds = 5; | |
2199 | cont_iocb_prsnt = 1; | |
2200 | entry_count++; | |
2201 | } | |
2202 | ||
2203 | sle_dma = sg_dma_address(sg); | |
2204 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2205 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2206 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2207 | loop_iterartion++; | |
2208 | avail_dsds--; | |
2209 | } | |
2210 | ct_iocb->entry_count = entry_count; | |
2211 | } | |
2212 | ||
5162cf0c GM |
2213 | /* |
2214 | * qla82xx_start_scsi() - Send a SCSI command to the ISP | |
2215 | * @sp: command to send to the ISP | |
2216 | * | |
2217 | * Returns non-zero if a failure occurred, else zero. | |
2218 | */ | |
2219 | int | |
2220 | qla82xx_start_scsi(srb_t *sp) | |
2221 | { | |
2222 | int ret, nseg; | |
2223 | unsigned long flags; | |
2224 | struct scsi_cmnd *cmd; | |
2225 | uint32_t *clr_ptr; | |
2226 | uint32_t index; | |
2227 | uint32_t handle; | |
2228 | uint16_t cnt; | |
2229 | uint16_t req_cnt; | |
2230 | uint16_t tot_dsds; | |
2231 | struct device_reg_82xx __iomem *reg; | |
2232 | uint32_t dbval; | |
2233 | uint32_t *fcp_dl; | |
2234 | uint8_t additional_cdb_len; | |
2235 | struct ct6_dsd *ctx; | |
2236 | struct scsi_qla_host *vha = sp->fcport->vha; | |
2237 | struct qla_hw_data *ha = vha->hw; | |
2238 | struct req_que *req = NULL; | |
2239 | struct rsp_que *rsp = NULL; | |
9ba56b95 | 2240 | char tag[2]; |
5162cf0c GM |
2241 | |
2242 | /* Setup device pointers. */ | |
2243 | ret = 0; | |
2244 | reg = &ha->iobase->isp82; | |
9ba56b95 | 2245 | cmd = GET_CMD_SP(sp); |
5162cf0c GM |
2246 | req = vha->req; |
2247 | rsp = ha->rsp_q_map[0]; | |
2248 | ||
2249 | /* So we know we haven't pci_map'ed anything yet */ | |
2250 | tot_dsds = 0; | |
2251 | ||
2252 | dbval = 0x04 | (ha->portnum << 5); | |
2253 | ||
2254 | /* Send marker if required */ | |
2255 | if (vha->marker_needed != 0) { | |
2256 | if (qla2x00_marker(vha, req, | |
2257 | rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) { | |
2258 | ql_log(ql_log_warn, vha, 0x300c, | |
2259 | "qla2x00_marker failed for cmd=%p.\n", cmd); | |
2260 | return QLA_FUNCTION_FAILED; | |
2261 | } | |
2262 | vha->marker_needed = 0; | |
2263 | } | |
2264 | ||
2265 | /* Acquire ring specific lock */ | |
2266 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
2267 | ||
2268 | /* Check for room in outstanding command list. */ | |
2269 | handle = req->current_outstanding_cmd; | |
8d93f550 | 2270 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
5162cf0c | 2271 | handle++; |
8d93f550 | 2272 | if (handle == req->num_outstanding_cmds) |
5162cf0c GM |
2273 | handle = 1; |
2274 | if (!req->outstanding_cmds[handle]) | |
2275 | break; | |
2276 | } | |
8d93f550 | 2277 | if (index == req->num_outstanding_cmds) |
5162cf0c GM |
2278 | goto queuing_error; |
2279 | ||
2280 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
2281 | if (scsi_sg_count(cmd)) { | |
2282 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
2283 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
2284 | if (unlikely(!nseg)) | |
2285 | goto queuing_error; | |
2286 | } else | |
2287 | nseg = 0; | |
2288 | ||
2289 | tot_dsds = nseg; | |
2290 | ||
2291 | if (tot_dsds > ql2xshiftctondsd) { | |
2292 | struct cmd_type_6 *cmd_pkt; | |
2293 | uint16_t more_dsd_lists = 0; | |
2294 | struct dsd_dma *dsd_ptr; | |
2295 | uint16_t i; | |
2296 | ||
2297 | more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds); | |
2298 | if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) { | |
2299 | ql_dbg(ql_dbg_io, vha, 0x300d, | |
2300 | "Num of DSD list %d is than %d for cmd=%p.\n", | |
2301 | more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN, | |
2302 | cmd); | |
2303 | goto queuing_error; | |
2304 | } | |
2305 | ||
2306 | if (more_dsd_lists <= ha->gbl_dsd_avail) | |
2307 | goto sufficient_dsds; | |
2308 | else | |
2309 | more_dsd_lists -= ha->gbl_dsd_avail; | |
2310 | ||
2311 | for (i = 0; i < more_dsd_lists; i++) { | |
2312 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
2313 | if (!dsd_ptr) { | |
2314 | ql_log(ql_log_fatal, vha, 0x300e, | |
2315 | "Failed to allocate memory for dsd_dma " | |
2316 | "for cmd=%p.\n", cmd); | |
2317 | goto queuing_error; | |
2318 | } | |
2319 | ||
2320 | dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool, | |
2321 | GFP_ATOMIC, &dsd_ptr->dsd_list_dma); | |
2322 | if (!dsd_ptr->dsd_addr) { | |
2323 | kfree(dsd_ptr); | |
2324 | ql_log(ql_log_fatal, vha, 0x300f, | |
2325 | "Failed to allocate memory for dsd_addr " | |
2326 | "for cmd=%p.\n", cmd); | |
2327 | goto queuing_error; | |
2328 | } | |
2329 | list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list); | |
2330 | ha->gbl_dsd_avail++; | |
2331 | } | |
2332 | ||
2333 | sufficient_dsds: | |
2334 | req_cnt = 1; | |
2335 | ||
2336 | if (req->cnt < (req_cnt + 2)) { | |
2337 | cnt = (uint16_t)RD_REG_DWORD_RELAXED( | |
2338 | ®->req_q_out[0]); | |
2339 | if (req->ring_index < cnt) | |
2340 | req->cnt = cnt - req->ring_index; | |
2341 | else | |
2342 | req->cnt = req->length - | |
2343 | (req->ring_index - cnt); | |
a6eb3c9f CL |
2344 | if (req->cnt < (req_cnt + 2)) |
2345 | goto queuing_error; | |
5162cf0c GM |
2346 | } |
2347 | ||
9ba56b95 GM |
2348 | ctx = sp->u.scmd.ctx = |
2349 | mempool_alloc(ha->ctx_mempool, GFP_ATOMIC); | |
2350 | if (!ctx) { | |
5162cf0c GM |
2351 | ql_log(ql_log_fatal, vha, 0x3010, |
2352 | "Failed to allocate ctx for cmd=%p.\n", cmd); | |
2353 | goto queuing_error; | |
2354 | } | |
9ba56b95 | 2355 | |
5162cf0c GM |
2356 | memset(ctx, 0, sizeof(struct ct6_dsd)); |
2357 | ctx->fcp_cmnd = dma_pool_alloc(ha->fcp_cmnd_dma_pool, | |
2358 | GFP_ATOMIC, &ctx->fcp_cmnd_dma); | |
2359 | if (!ctx->fcp_cmnd) { | |
2360 | ql_log(ql_log_fatal, vha, 0x3011, | |
2361 | "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd); | |
841f97bf | 2362 | goto queuing_error; |
5162cf0c GM |
2363 | } |
2364 | ||
2365 | /* Initialize the DSD list and dma handle */ | |
2366 | INIT_LIST_HEAD(&ctx->dsd_list); | |
2367 | ctx->dsd_use_cnt = 0; | |
2368 | ||
2369 | if (cmd->cmd_len > 16) { | |
2370 | additional_cdb_len = cmd->cmd_len - 16; | |
2371 | if ((cmd->cmd_len % 4) != 0) { | |
2372 | /* SCSI command bigger than 16 bytes must be | |
2373 | * multiple of 4 | |
2374 | */ | |
2375 | ql_log(ql_log_warn, vha, 0x3012, | |
2376 | "scsi cmd len %d not multiple of 4 " | |
2377 | "for cmd=%p.\n", cmd->cmd_len, cmd); | |
2378 | goto queuing_error_fcp_cmnd; | |
2379 | } | |
2380 | ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4; | |
2381 | } else { | |
2382 | additional_cdb_len = 0; | |
2383 | ctx->fcp_cmnd_len = 12 + 16 + 4; | |
2384 | } | |
2385 | ||
2386 | cmd_pkt = (struct cmd_type_6 *)req->ring_ptr; | |
2387 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
2388 | ||
2389 | /* Zero out remaining portion of packet. */ | |
2390 | /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ | |
2391 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
2392 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
2393 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
2394 | ||
2395 | /* Set NPORT-ID and LUN number*/ | |
2396 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2397 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
2398 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
2399 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 2400 | cmd_pkt->vp_index = sp->fcport->vha->vp_idx; |
5162cf0c GM |
2401 | |
2402 | /* Build IOCB segments */ | |
2403 | if (qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds)) | |
2404 | goto queuing_error_fcp_cmnd; | |
2405 | ||
9ba56b95 | 2406 | int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); |
5162cf0c GM |
2407 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); |
2408 | ||
2409 | /* build FCP_CMND IU */ | |
2410 | memset(ctx->fcp_cmnd, 0, sizeof(struct fcp_cmnd)); | |
9ba56b95 | 2411 | int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun); |
5162cf0c GM |
2412 | ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len; |
2413 | ||
2414 | if (cmd->sc_data_direction == DMA_TO_DEVICE) | |
2415 | ctx->fcp_cmnd->additional_cdb_len |= 1; | |
2416 | else if (cmd->sc_data_direction == DMA_FROM_DEVICE) | |
2417 | ctx->fcp_cmnd->additional_cdb_len |= 2; | |
2418 | ||
2419 | /* | |
2420 | * Update tagged queuing modifier -- default is TSK_SIMPLE (0). | |
2421 | */ | |
2422 | if (scsi_populate_tag_msg(cmd, tag)) { | |
2423 | switch (tag[0]) { | |
2424 | case HEAD_OF_QUEUE_TAG: | |
2425 | ctx->fcp_cmnd->task_attribute = | |
2426 | TSK_HEAD_OF_QUEUE; | |
2427 | break; | |
2428 | case ORDERED_QUEUE_TAG: | |
2429 | ctx->fcp_cmnd->task_attribute = | |
2430 | TSK_ORDERED; | |
2431 | break; | |
2432 | } | |
2433 | } | |
2434 | ||
a00f6296 SK |
2435 | /* Populate the FCP_PRIO. */ |
2436 | if (ha->flags.fcp_prio_enabled) | |
2437 | ctx->fcp_cmnd->task_attribute |= | |
2438 | sp->fcport->fcp_prio << 3; | |
2439 | ||
5162cf0c GM |
2440 | memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); |
2441 | ||
2442 | fcp_dl = (uint32_t *)(ctx->fcp_cmnd->cdb + 16 + | |
2443 | additional_cdb_len); | |
2444 | *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd)); | |
2445 | ||
2446 | cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len); | |
2447 | cmd_pkt->fcp_cmnd_dseg_address[0] = | |
2448 | cpu_to_le32(LSD(ctx->fcp_cmnd_dma)); | |
2449 | cmd_pkt->fcp_cmnd_dseg_address[1] = | |
2450 | cpu_to_le32(MSD(ctx->fcp_cmnd_dma)); | |
2451 | ||
2452 | sp->flags |= SRB_FCP_CMND_DMA_VALID; | |
2453 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); | |
2454 | /* Set total data segment count. */ | |
2455 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
2456 | /* Specify response queue number where | |
2457 | * completion should happen | |
2458 | */ | |
2459 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2460 | } else { | |
2461 | struct cmd_type_7 *cmd_pkt; | |
2462 | req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); | |
2463 | if (req->cnt < (req_cnt + 2)) { | |
2464 | cnt = (uint16_t)RD_REG_DWORD_RELAXED( | |
2465 | ®->req_q_out[0]); | |
2466 | if (req->ring_index < cnt) | |
2467 | req->cnt = cnt - req->ring_index; | |
2468 | else | |
2469 | req->cnt = req->length - | |
2470 | (req->ring_index - cnt); | |
2471 | } | |
2472 | if (req->cnt < (req_cnt + 2)) | |
2473 | goto queuing_error; | |
2474 | ||
2475 | cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; | |
2476 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
2477 | ||
2478 | /* Zero out remaining portion of packet. */ | |
2479 | /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ | |
2480 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
2481 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
2482 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
2483 | ||
2484 | /* Set NPORT-ID and LUN number*/ | |
2485 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2486 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
2487 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
2488 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 2489 | cmd_pkt->vp_index = sp->fcport->vha->vp_idx; |
5162cf0c | 2490 | |
9ba56b95 | 2491 | int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); |
5162cf0c | 2492 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, |
9ba56b95 | 2493 | sizeof(cmd_pkt->lun)); |
5162cf0c GM |
2494 | |
2495 | /* | |
2496 | * Update tagged queuing modifier -- default is TSK_SIMPLE (0). | |
2497 | */ | |
2498 | if (scsi_populate_tag_msg(cmd, tag)) { | |
2499 | switch (tag[0]) { | |
2500 | case HEAD_OF_QUEUE_TAG: | |
2501 | cmd_pkt->task = TSK_HEAD_OF_QUEUE; | |
2502 | break; | |
2503 | case ORDERED_QUEUE_TAG: | |
2504 | cmd_pkt->task = TSK_ORDERED; | |
2505 | break; | |
2506 | } | |
2507 | } | |
2508 | ||
a00f6296 SK |
2509 | /* Populate the FCP_PRIO. */ |
2510 | if (ha->flags.fcp_prio_enabled) | |
2511 | cmd_pkt->task |= sp->fcport->fcp_prio << 3; | |
2512 | ||
5162cf0c GM |
2513 | /* Load SCSI command packet. */ |
2514 | memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); | |
2515 | host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); | |
2516 | ||
2517 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); | |
2518 | ||
2519 | /* Build IOCB segments */ | |
2520 | qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds); | |
2521 | ||
2522 | /* Set total data segment count. */ | |
2523 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
2524 | /* Specify response queue number where | |
2525 | * completion should happen. | |
2526 | */ | |
2527 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2528 | ||
2529 | } | |
2530 | /* Build command packet. */ | |
2531 | req->current_outstanding_cmd = handle; | |
2532 | req->outstanding_cmds[handle] = sp; | |
2533 | sp->handle = handle; | |
9ba56b95 | 2534 | cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
5162cf0c GM |
2535 | req->cnt -= req_cnt; |
2536 | wmb(); | |
2537 | ||
2538 | /* Adjust ring index. */ | |
2539 | req->ring_index++; | |
2540 | if (req->ring_index == req->length) { | |
2541 | req->ring_index = 0; | |
2542 | req->ring_ptr = req->ring; | |
2543 | } else | |
2544 | req->ring_ptr++; | |
2545 | ||
2546 | sp->flags |= SRB_DMA_VALID; | |
2547 | ||
2548 | /* Set chip new ring index. */ | |
2549 | /* write, read and verify logic */ | |
2550 | dbval = dbval | (req->id << 8) | (req->ring_index << 16); | |
2551 | if (ql2xdbwr) | |
2552 | qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval); | |
2553 | else { | |
2554 | WRT_REG_DWORD( | |
2555 | (unsigned long __iomem *)ha->nxdb_wr_ptr, | |
2556 | dbval); | |
2557 | wmb(); | |
fa492630 | 2558 | while (RD_REG_DWORD((void __iomem *)ha->nxdb_rd_ptr) != dbval) { |
5162cf0c GM |
2559 | WRT_REG_DWORD( |
2560 | (unsigned long __iomem *)ha->nxdb_wr_ptr, | |
2561 | dbval); | |
2562 | wmb(); | |
2563 | } | |
2564 | } | |
2565 | ||
2566 | /* Manage unprocessed RIO/ZIO commands in response queue. */ | |
2567 | if (vha->flags.process_response_queue && | |
2568 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) | |
2569 | qla24xx_process_response_queue(vha, rsp); | |
2570 | ||
2571 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2572 | return QLA_SUCCESS; | |
2573 | ||
2574 | queuing_error_fcp_cmnd: | |
2575 | dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma); | |
2576 | queuing_error: | |
2577 | if (tot_dsds) | |
2578 | scsi_dma_unmap(cmd); | |
2579 | ||
9ba56b95 GM |
2580 | if (sp->u.scmd.ctx) { |
2581 | mempool_free(sp->u.scmd.ctx, ha->ctx_mempool); | |
2582 | sp->u.scmd.ctx = NULL; | |
5162cf0c GM |
2583 | } |
2584 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2585 | ||
2586 | return QLA_FUNCTION_FAILED; | |
2587 | } | |
2588 | ||
ac280b67 AV |
2589 | int |
2590 | qla2x00_start_sp(srb_t *sp) | |
2591 | { | |
2592 | int rval; | |
2593 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
2594 | void *pkt; | |
ac280b67 AV |
2595 | unsigned long flags; |
2596 | ||
2597 | rval = QLA_FUNCTION_FAILED; | |
2598 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
d94d10e7 | 2599 | pkt = qla2x00_alloc_iocbs(sp->fcport->vha, sp); |
7c3df132 SK |
2600 | if (!pkt) { |
2601 | ql_log(ql_log_warn, sp->fcport->vha, 0x700c, | |
2602 | "qla2x00_alloc_iocbs failed.\n"); | |
ac280b67 | 2603 | goto done; |
7c3df132 | 2604 | } |
ac280b67 AV |
2605 | |
2606 | rval = QLA_SUCCESS; | |
9ba56b95 | 2607 | switch (sp->type) { |
ac280b67 AV |
2608 | case SRB_LOGIN_CMD: |
2609 | IS_FWI2_CAPABLE(ha) ? | |
5ff1d584 | 2610 | qla24xx_login_iocb(sp, pkt) : |
ac280b67 AV |
2611 | qla2x00_login_iocb(sp, pkt); |
2612 | break; | |
2613 | case SRB_LOGOUT_CMD: | |
2614 | IS_FWI2_CAPABLE(ha) ? | |
5ff1d584 | 2615 | qla24xx_logout_iocb(sp, pkt) : |
ac280b67 AV |
2616 | qla2x00_logout_iocb(sp, pkt); |
2617 | break; | |
9a069e19 GM |
2618 | case SRB_ELS_CMD_RPT: |
2619 | case SRB_ELS_CMD_HST: | |
2620 | qla24xx_els_iocb(sp, pkt); | |
2621 | break; | |
2622 | case SRB_CT_CMD: | |
9bc4f4fb | 2623 | IS_FWI2_CAPABLE(ha) ? |
5780790e AV |
2624 | qla24xx_ct_iocb(sp, pkt) : |
2625 | qla2x00_ct_iocb(sp, pkt); | |
9a069e19 | 2626 | break; |
5ff1d584 AV |
2627 | case SRB_ADISC_CMD: |
2628 | IS_FWI2_CAPABLE(ha) ? | |
2629 | qla24xx_adisc_iocb(sp, pkt) : | |
2630 | qla2x00_adisc_iocb(sp, pkt); | |
2631 | break; | |
3822263e | 2632 | case SRB_TM_CMD: |
8ae6d9c7 GM |
2633 | IS_QLAFX00(ha) ? |
2634 | qlafx00_tm_iocb(sp, pkt) : | |
2635 | qla24xx_tm_iocb(sp, pkt); | |
2636 | break; | |
2637 | case SRB_FXIOCB_DCMD: | |
2638 | case SRB_FXIOCB_BCMD: | |
2639 | qlafx00_fxdisc_iocb(sp, pkt); | |
2640 | break; | |
2641 | case SRB_ABT_CMD: | |
2642 | qlafx00_abort_iocb(sp, pkt); | |
3822263e | 2643 | break; |
ac280b67 AV |
2644 | default: |
2645 | break; | |
2646 | } | |
2647 | ||
2648 | wmb(); | |
5162cf0c | 2649 | qla2x00_start_iocbs(sp->fcport->vha, ha->req_q_map[0]); |
ac280b67 AV |
2650 | done: |
2651 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2652 | return rval; | |
2653 | } | |
a9b6f722 SK |
2654 | |
2655 | static void | |
2656 | qla25xx_build_bidir_iocb(srb_t *sp, struct scsi_qla_host *vha, | |
2657 | struct cmd_bidir *cmd_pkt, uint32_t tot_dsds) | |
2658 | { | |
2659 | uint16_t avail_dsds; | |
2660 | uint32_t *cur_dsd; | |
2661 | uint32_t req_data_len = 0; | |
2662 | uint32_t rsp_data_len = 0; | |
2663 | struct scatterlist *sg; | |
2664 | int index; | |
2665 | int entry_count = 1; | |
2666 | struct fc_bsg_job *bsg_job = sp->u.bsg_job; | |
2667 | ||
2668 | /*Update entry type to indicate bidir command */ | |
2669 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
2670 | __constant_cpu_to_le32(COMMAND_BIDIRECTIONAL); | |
2671 | ||
2672 | /* Set the transfer direction, in this set both flags | |
2673 | * Also set the BD_WRAP_BACK flag, firmware will take care | |
2674 | * assigning DID=SID for outgoing pkts. | |
2675 | */ | |
2676 | cmd_pkt->wr_dseg_count = cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
2677 | cmd_pkt->rd_dseg_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
2678 | cmd_pkt->control_flags = | |
2679 | __constant_cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA | | |
2680 | BD_WRAP_BACK); | |
2681 | ||
2682 | req_data_len = rsp_data_len = bsg_job->request_payload.payload_len; | |
2683 | cmd_pkt->wr_byte_count = cpu_to_le32(req_data_len); | |
2684 | cmd_pkt->rd_byte_count = cpu_to_le32(rsp_data_len); | |
2685 | cmd_pkt->timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2); | |
2686 | ||
2687 | vha->bidi_stats.transfer_bytes += req_data_len; | |
2688 | vha->bidi_stats.io_count++; | |
2689 | ||
2690 | /* Only one dsd is available for bidirectional IOCB, remaining dsds | |
2691 | * are bundled in continuation iocb | |
2692 | */ | |
2693 | avail_dsds = 1; | |
2694 | cur_dsd = (uint32_t *)&cmd_pkt->fcp_data_dseg_address; | |
2695 | ||
2696 | index = 0; | |
2697 | ||
2698 | for_each_sg(bsg_job->request_payload.sg_list, sg, | |
2699 | bsg_job->request_payload.sg_cnt, index) { | |
2700 | dma_addr_t sle_dma; | |
2701 | cont_a64_entry_t *cont_pkt; | |
2702 | ||
2703 | /* Allocate additional continuation packets */ | |
2704 | if (avail_dsds == 0) { | |
2705 | /* Continuation type 1 IOCB can accomodate | |
2706 | * 5 DSDS | |
2707 | */ | |
2708 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); | |
2709 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; | |
2710 | avail_dsds = 5; | |
2711 | entry_count++; | |
2712 | } | |
2713 | sle_dma = sg_dma_address(sg); | |
2714 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2715 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2716 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2717 | avail_dsds--; | |
2718 | } | |
2719 | /* For read request DSD will always goes to continuation IOCB | |
2720 | * and follow the write DSD. If there is room on the current IOCB | |
2721 | * then it is added to that IOCB else new continuation IOCB is | |
2722 | * allocated. | |
2723 | */ | |
2724 | for_each_sg(bsg_job->reply_payload.sg_list, sg, | |
2725 | bsg_job->reply_payload.sg_cnt, index) { | |
2726 | dma_addr_t sle_dma; | |
2727 | cont_a64_entry_t *cont_pkt; | |
2728 | ||
2729 | /* Allocate additional continuation packets */ | |
2730 | if (avail_dsds == 0) { | |
2731 | /* Continuation type 1 IOCB can accomodate | |
2732 | * 5 DSDS | |
2733 | */ | |
2734 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); | |
2735 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; | |
2736 | avail_dsds = 5; | |
2737 | entry_count++; | |
2738 | } | |
2739 | sle_dma = sg_dma_address(sg); | |
2740 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2741 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2742 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2743 | avail_dsds--; | |
2744 | } | |
2745 | /* This value should be same as number of IOCB required for this cmd */ | |
2746 | cmd_pkt->entry_count = entry_count; | |
2747 | } | |
2748 | ||
2749 | int | |
2750 | qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds) | |
2751 | { | |
2752 | ||
2753 | struct qla_hw_data *ha = vha->hw; | |
2754 | unsigned long flags; | |
2755 | uint32_t handle; | |
2756 | uint32_t index; | |
2757 | uint16_t req_cnt; | |
2758 | uint16_t cnt; | |
2759 | uint32_t *clr_ptr; | |
2760 | struct cmd_bidir *cmd_pkt = NULL; | |
2761 | struct rsp_que *rsp; | |
2762 | struct req_que *req; | |
2763 | int rval = EXT_STATUS_OK; | |
a9b6f722 SK |
2764 | |
2765 | rval = QLA_SUCCESS; | |
2766 | ||
2767 | rsp = ha->rsp_q_map[0]; | |
2768 | req = vha->req; | |
2769 | ||
2770 | /* Send marker if required */ | |
2771 | if (vha->marker_needed != 0) { | |
2772 | if (qla2x00_marker(vha, req, | |
2773 | rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) | |
2774 | return EXT_STATUS_MAILBOX; | |
2775 | vha->marker_needed = 0; | |
2776 | } | |
2777 | ||
2778 | /* Acquire ring specific lock */ | |
2779 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
2780 | ||
2781 | /* Check for room in outstanding command list. */ | |
2782 | handle = req->current_outstanding_cmd; | |
8d93f550 | 2783 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
a9b6f722 | 2784 | handle++; |
8d93f550 | 2785 | if (handle == req->num_outstanding_cmds) |
a9b6f722 SK |
2786 | handle = 1; |
2787 | if (!req->outstanding_cmds[handle]) | |
2788 | break; | |
2789 | } | |
2790 | ||
8d93f550 | 2791 | if (index == req->num_outstanding_cmds) { |
a9b6f722 SK |
2792 | rval = EXT_STATUS_BUSY; |
2793 | goto queuing_error; | |
2794 | } | |
2795 | ||
2796 | /* Calculate number of IOCB required */ | |
2797 | req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); | |
2798 | ||
2799 | /* Check for room on request queue. */ | |
2800 | if (req->cnt < req_cnt + 2) { | |
7e98df22 | 2801 | cnt = RD_REG_DWORD_RELAXED(req->req_q_out); |
a9b6f722 SK |
2802 | |
2803 | if (req->ring_index < cnt) | |
2804 | req->cnt = cnt - req->ring_index; | |
2805 | else | |
2806 | req->cnt = req->length - | |
2807 | (req->ring_index - cnt); | |
2808 | } | |
2809 | if (req->cnt < req_cnt + 2) { | |
2810 | rval = EXT_STATUS_BUSY; | |
2811 | goto queuing_error; | |
2812 | } | |
2813 | ||
2814 | cmd_pkt = (struct cmd_bidir *)req->ring_ptr; | |
2815 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
2816 | ||
2817 | /* Zero out remaining portion of packet. */ | |
2818 | /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ | |
2819 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
2820 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
2821 | ||
2822 | /* Set NPORT-ID (of vha)*/ | |
2823 | cmd_pkt->nport_handle = cpu_to_le16(vha->self_login_loop_id); | |
2824 | cmd_pkt->port_id[0] = vha->d_id.b.al_pa; | |
2825 | cmd_pkt->port_id[1] = vha->d_id.b.area; | |
2826 | cmd_pkt->port_id[2] = vha->d_id.b.domain; | |
2827 | ||
2828 | qla25xx_build_bidir_iocb(sp, vha, cmd_pkt, tot_dsds); | |
2829 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2830 | /* Build command packet. */ | |
2831 | req->current_outstanding_cmd = handle; | |
2832 | req->outstanding_cmds[handle] = sp; | |
2833 | sp->handle = handle; | |
2834 | req->cnt -= req_cnt; | |
2835 | ||
2836 | /* Send the command to the firmware */ | |
2837 | wmb(); | |
2838 | qla2x00_start_iocbs(vha, req); | |
2839 | queuing_error: | |
2840 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2841 | return rval; | |
2842 | } |